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Publikationen

2015            2014            2013            2012            2011           2010               2009               2008


2015


Projekt: 6
p-B-n organic junctions for efficient photovoltaics

D. Di Nuzzo, C. Fontanesi, R. Jones, S. Allard, I. Dumsch, U. Scherf, E. von Hauff, S. Schumacher and E. Da Como, How intermolecular geometrical disorder affects the molecular doping of donor-acceptor copolymers. Nature Communications 6 (2015), Article number: 6013 doi:10.1038/ncomms7013 


2014


Projekt: 2

An integrated approach towards highly efficient bulkheterojunction solar cells based on dendritic oligothiophenes - From synthesis to device fabrication to characterization and stochastic
model-based simulation.

T.J. Brereton, O. Stenzel, B. Baumeier, D. Andrienko, V. Schmidt and D.P. Kroese, Efficient simulation of Markov chains using segmentation. Methodology and Computing in Applied Probability 16 (2014), 465.484.

G. Divitini, O. Stenzel, A. Ghadirzadeh, S. Guarnera, V. Russo, C.S. Casari, A.L. Bassi, A. Petrozza, F. di Fonzo, V. Schmidt and C. Ducati, Nanoscale analysis of a hierarchical hybrid solar cell in 3D. Advanced Functional Materials 24 (2014), 3043-3050.

P. Kordt, O. Stenzel, B. Baumeier, V. Schmidt and D. Andrienko, Parametrization of extended Gaussian disorder models from microscopic charge transport simulations. Journal of Chemical Theory and Computation 10 (2014), 2508-2513.

Stenzel, C. Hirsch, V. Schmidt, T.J. Brereton, D.P. Kroese, B. Baumeier and D. Andrienko, A general framework for consistent estimation of charge transport properties via random walks in random environments. Multiscale Modeling and Simulation 12 (2014), 1108-1134.

J. van Franeker, D. Westhoff, M. Turbiez, M.M. Wienk, V. Schmidt and R.A.J. Janssen, Origin of the dominant length scale of phase separation in spin-coated organic semiconductor films. Preprint (submitted) 


Projekt: 3

Organic solar cells based on oligothiophene derivatives

    Koerner, C.; Hein, M.P.; Kažukauskas, V.; Sakavičius, A.; Janonis,V.; Fitzner, R.; Bäuerle, P.; Leo,  K.; Riede, M.: "Correlation between Temperature Activation of Charge-Carrier Generation Efficiency and Hole Mobility in Small-Molecule Donor Materials", ChemPhysChem Volume 2014, 15(6), 1049–1055
      Projekt: 7
      Interplay between microscopic structure and intermolecular charge transfer processes in polymer-fullerene bulk-heterojunctions
      N. Wolf, T. Stubhan, J. Manara, V. Dyakonov and C. Brabec, Stabilization of Aluminum Doped Zinc Oxide Nanoparticle Suspensions and their Application in Organic Solar Cells. Thin Solid Films 564, 213 (2014) http://dx.doi.org/10.1016/j.tsf.2014.06.008
      A. Zusan, K. Vandewal, B. Allendorf, N. H. Hansen, J. Pflaum, A. Salleo, V. Dyakonov and C. Deibel, The Crucial Influence of Fullerene Phases on the Photogeneration in Organic Bulk Heterojunction Solar Cells. Adv. Energy Mater. 4, 1400922 (2014) http://dx.doi.org/10.1002/aenm.201400922

      Projekt: 8
      Influence of π−π stacking distance in low-band-gap PPE-PPV polymers on the morphology and performance of polymer-fullerene solar cells.
      Mangold, H.; Bakulin, A. A.;  Howard, I. A.; Kästner,C.; Egbe, D. A. M.;  Hoppe, H.; Laquai, F.: Control of charge generation and recombination in ternary polymer/polymer:fullerene photovoltaic blends using amorphous and semi-crystalline copolymers as donors; Phys. Chem. Chem. Phys. 2014, 16, 20329-20337
      Adam, G.; Yohannes, T.; White, M.; Montaigne, A.; Ulbricht, C.; Birckner, E.; Rathgeber, S.; Hoppe, H.; Sariciftci, N. S.; Egbe, D. A. M.,: Effect of Varying Thiophene Units on Charge Transport and Photovoltaic Properties of Poly(phenyleneethynylene)-alt-poly(phenylenevinylene)s Polymers;  Macromol. Chem. Phys. 2014, 215, 1473-1484
      Tinti, F.; Sabir, F. K.; Gazzano, M.; Righi, S.; Usluer, Ö.; Ulbricht, C.; Yohannes, T.; Egbe, D. A. M.;  Camaioni, N.,: Effect of side-chains on charge transport of anthracene-based PPE-PPV copolymers; Macromol. Chem. Phys, 2014, 215, 452-457
      Tore, N.; Parlak E. A.; Tumay, T. A.; Kavak P.; Sarioglan S.; Bozar, S.; Günes, S.; Ulbricht, C.; Egbe, D. A. M.:Improvement in photovoltaic performance of anthracene-containing PPE-PPV polymer-based bulk heterojunction solar cells with silver nanoparticles; J Nanopart Res 2014, 16, 229
      Gasiorowski, J.; Boudiba, S.; Hingerl, K.; Ulbricht, C.; Fattori, V.; Tinti, F.; Camaioni, N.; Menon, R.; Schlager, S.; Boudida, L.; Sariciftci, N. S.; Egbe, D. A. M.,: Anthracene-Containing Conjugated Polymer Showing Four Optical Transitions Upon Doping: a Spectroscopic Study; Journal Polym. Sci: Polym. Phys 2014, 52, 338-346. (front cover)
      Kösemen, A.; Tore, N.; Parlak A. E.; Kösemen, Z. A.; Ulbricht, C.; Usluer, Ö, Egbe, D. A. M.; Yerlia, Y.; Sana, S. E.: An efficient organic inverted solar cell with AnE-PVstat:PCBM active layer and V2O5/Al anode ; Solar Energy 2014, 99, 88-94.
      Turkovic, S.; Engmann, S.; Egbe, D. A. M.; Himmerlich, M.; Krischok, S.; Gobsch, G.; Hoppe, H.: Multiple stress degradation analysis of the active layer in organic photovoltaics; Sol. Energy Mater. Sol. Cells 2014, 120, 654-668.

      Projekt: 19
      Plasmon-mediated organic photovoltaics
      Jägeler-Hoheisel, T.; Selzer, F.; Riede, M.; Leo, K. Direct Electrical Evidence of Plasmonic Near-Field Enhancement in Small Molecule Organic Solar Cells. J. Phys. Chem. C, 2014, 118 (28), 15128–15135.

      Projekt: 20

      Control of the nanoscale morphology of bulk heterojunction solar cells via chemical assembly of low bandgap conjugated polymers on nanoparticle support

      Tkachov, R.; Komber, H.; Rauch, S.; Lederer, A.; Oertel, U.; Häußler, L.; Voit, B.; Kiriy, A. A One-Pot Synthesis of All-Conjugated Block-Like Bisthiophene-Naphthalenediimide/Fluorene Copolymer. Macromolecules 2014, 47, 4994–5001.

      K. Tremel, F.S.U. Fischer, N. Kayunkid, R. Di Pietro, R. Tkachov, A. Kiriy, D. Neher, S. Ludwigs, M. Brinkmann, Charge Transport Anisotropy in Highly Oriented Thin Films of The Acceptor Polymer P(NDI2OD-T2), Adv. Energy Mater. 2014, 4, 1301659.

      T. Erdmann, J. Back, R. Tkachov, A. Ruff, B. Voit, S. Ludwigs A. Kiriy, Dithienosilole-Based All-Conjugated Block Copolymers Synthesized by a Combination of Quasi-Living Kumada and Negishi Catalyst-Transfer Polycondensations, Polymer Chemistry 2014, 5, 5383-5390.

      Tkachov, R.; Karpov, Y.; Senkovskyy, V.; Raguzin, I.; Zessin, J.; Lederer, A.; Stamm, M.; Voit, B.; Beryozkina, T.; Bakulev, V.; Zhao, W.; Facchetti, A. Kiriy, A. Efficient Tin-Free Route to a Donor–Acceptor Semiconducting Copolymer with Variable Molecular Weights. Macromolecules 2014, 47, 3845−3851.

      G. C. Schmidt,   D. Höft, K. Haase, A. C. Hübler, E. Karpov, R. Tkachov, M. Stamm, A. Kiriy,  F. Haidu, D. R. T. Zahn, H. Yane A. Facchetti. Naphtalenediimide-based donor–acceptor copolymer prepared by chain-growth catalyst-transfer polycondensation: evaluation of electron-transporting properties and application in printed polymer transistors. J. Mater. Chem. C, 2014, 2, 5149-5154.

      Liu, W.; Tkachov, R.; Komber, H.; Senkovskyy, V.; Schubert, M.; Neher, D.; Zhao, W.; Facchetti, A.; Kiriy, A. Chain-growth polycondensation of perylene diimide-based copolymers: a new route to regio-regular perylene diimide-based acceptors for all-polymer solar cells and n-type transistors. Polym. Chem. 2014, 5, 3404-3411.

      Tkachov, R.; Senkovskyy, V.; Beryozkina, T.; Boyko, K.; Bakulev, V.; Lederer, A.; Sahre, K.; Voit, B.; Kiriy, A. Palladium-Catalyzed Chain-Growth Polycondensation of AB-type Monomers: High Catalyst Turnover and Polymerization Rates Angew. Chem. Int. Ed. 2014, 53, 2402-2407.


      2013


Projekt: 2

An integrated approach towards highly efficient bulkheterojunction solar cells based on dendritic oligothiophenes - From synthesis to device fabrication to characterization and stochastic
model-based simulation.

L.J.A. Koster, O. Stenzel, S.D. Oosterhout, M. Wienk, V. Schmidt and R.A.J. Janssen, Morphology and efficiency: The case of polymer/ZnO cells. Advanced Energy Materials 3 (2013), 615-621.
Improved Phase Separation in Polymer Solar Cells by Solvent Blending
Kästner, C.; Muhsin, B.; Wild, A.; Rathgeber, S, Egbe, D. A.M.; Hoppe, H.; J. Polym. Sci, Part B: Polym. Phys 2013, 51, 868-874

Projekt: 7
Interplay between microscopic structure and intermolecular charge transfer processes in polymer-fullerene bulk-heterojunctions
A. Foertig, J. Kniepert, M. Gluecker, T. Brenner, V. Dyakonov, D. Neher, C. Deibel, Nongeminate and geminate recombination in PTB7:PC71BM solar cells. Adv. Funct. Mater. (2013) http://onlinelibrary.wiley.com/doi/10.1002/adfm.201302134/abstract

Projekt: 8

Influence of π−π stacking distance in low-band-gap PPE-PPV polymers on the morphology and performance of polymer-fullerene solar cells.

Kästner, C.; Muhsin, B.; Wild, A.; Rathgeber, S, Egbe, D. A.M.; Hoppe, H.: "Improved Phase Separation in Polymer Solar Cells by Solvent Blending",  J. Polym. Sci, Part B: Polym. Phys 2013, 51, 868-874
Tinti, F; Sabir,  F. K.; Gazzano, M.; Righi, S.; Ulbricht, C.; Usluer, O.; Pokorna, V.;  Cimrova, V.; Yohannes, T.; Egbe, D. A. M.; Camaioni, N.: "Tuning the properties of an anthracene-based PPE-PPV copolymer by fine variation of its macromolecular parameters", RSC Adv. 2013, 3, 6972-6980.
Kästner, C.; Rathgeber, S.; Egbe, D. A. M.; Hoppe, H. J.: "Improvement of photovoltaic performance by ternary blending of amorphous and semi-crystalline polymer analogues with PCBM", Mater. Chem. A 2013, 1, 3961–3969
Troshin, P. A.; Mukhacheva, O. A.; Usluer, Ö.; Goryachev,  A. E.; Akkuratov, A. V.;  Susarova, D. K.;. Dremova, N. N.; Rathgeber, S.; Sariciftci, N. S.; Vladimir F. Razumov, V. F.,  Egbe, D. A. M.: "Improved photovoltaic performance of PPV-based copolymer using optimized fullerene based counterparts", Adv. Energy Mater. 2013, 3, 161-166
Improved Phase Separation in Polymer Solar Cells by Solvent Blending
Kästner, C.; Muhsin, B.; Wild, A.; Rathgeber, S, Egbe, D. A.M.; Hoppe, H.; J. Polym. Sci, Part B: Polym. Phys 2013, 51, 868-874
Saidania, M. A.;. Benfredja, A.; Ben Hameda, Z.; Romdhane, S.; Ulbricht, C.; Egbe, D.A.M.; Bouchrihaa, H.: “Franck-Condon analysis of the photoluminescence spectra of atriple-bond containing polymer as a solution and as a thin film“, Synthetic Metals 2013, 184, 83–85.
Aazou, S.; Ibral, A.; White, M. S.; Kaltenbrunner, M.; Glowacki, E. D.; Egbe, D. A. M.; Sariciftci, N. S.; Assaid, E. M.: “Organic Bulk Heterojunction Solar Cells Based on P3HT and Anthracene-Containing PPE-PPV: Fabrication, Characterization and Modeling”, Journal of Optoelectronics and Advanced Materials 2013, 13, 395-404.
White, M. S.; Kaltenbrunner, M.;  Głowacki, E. D.; Kettlgruber, G.; Graz, I.; Aazou, S.;  Ulbricht, C.;  Egbe, D. A. M.;  Scharber, M.;  Sekitani, T.; Someya, T.; Bauer, S.;  Sariciftci, N.S.: “Ultrathin, highly flexible, and stretch-compatible PLEDs”,  Nature Photonics 2013, 7, 811-816

Projekt 12:

Influence of electric fields on morphology and performance of compatibilized all-polymer solar cells

Stelzl. F.; Schulz-Gericke, J.; Niggemann, M.; Würfel, U.: "High yield fabrication of vertical interdigital electrodes with sub micrometer distance and their  application in an organic photovoltaic device", Organic Electronics, 12 (2), 2013, 535-541. DOI: 10.1016/j.orgel.2012.11.022


Projekt 17:

Controlling the electronic interface properties in polymer-fullerene bulk-heterojunction solar cells

Ameri,T.;Khoram, P.;Min, J. and Brabec, C. J., “Organic ternary solar cells: A review”, Adv. Mater., 25, 4245, 2013.

Löslein,H.;Ameri, T.;Matt, G. J.;Koppe, M.;Egelhaaf, H. J.;Troeger, A.;Sgobba, V.;Guldi, D. M.;Brabec, C. J., “Transient Absorption Spectroscopy Studies on Polythiophene–Fullerene Bulk Heterojunction Organic Blend Films Sensitized with a Low-Bandgap Polymer”, Macromol. Rap.Comm., 34, 1090, 2013.



Projekt 18:

Near IR sensitization of polymer/fullerene solar cells: controlling the morphology and transport in ternary blends

Min,J.;Ameri, T.;Gresser, R.;Lorenz-Rothe, M.;Baran, D.;Troeger, A.;Sgobba, V.;Leo, K.;Riede, M.;Guldi, D. M.;Brabec, C. J., "Two Similar Near-Infrared (IR) Absorbing Benzannulated Aza-BODIPY Dyes as Near-IR Sensitizers for Ternary Solar Cells", ACS Appl. Mater. Interfaces, 5, 5609, 2013.

Ameri, T.; Heumuller, T. Min, J.;Li, N.;Matt, G.;Scherf, U. and Brabec,C. J., “IR sensitization of an indene-C60 bisadduct (ICBA) in ternary organic solar cells”, Energy Environ. Sci., 6, 1796, 2013.


Projekt 19:

Plasmon-mediated organic photovoltaics

Jägeler-Hoheisel, T.; Cordeiro, J.; Lecarme, O.; Cuche, A., Girard, C.; Dujardin, E.; Peyrade, D.; Arbouet, A. Plasmonic Shaping in Gold Nanoparticle Three-Dimensional Assemblies. J. Phys. Chem. C, 2013, 117 (44), 23126-2313.
Scholz, R.; Luschtinetz, R.; Seifert, G.; Jägeler-Hoheisel, T.; Körner, C.; Leo, K. and Rapacioli, M. "Quantifying charge transfer energies at donor-acceptor interfaces in small-molecule solar cells with constrained DFTB and spectroscopic methods": J. Phys.: Condens. Matter 25 (2013) 473201.

2012


Projekt: 1

Towards multijunction polymer solar cells with improved optoelectronic properties

B. Schmidt-Hansberg, M. Sanyal, N. Grossiord, Y. Galagan, M. Baunach, M.F.G. Klein, A. Colsmann, P. Scharfer, U. Lemmer, H. Dosch, J. Michels, E. Barrena, W. Schabel, Investigation of non-halogenated solvent mixtures for high throughput fabrication of polymer–fullerene solar cells, Solar Energy Materials & Solar Cells 96, 195–201, (2012).


Projekt: 2

An integrated approach towards highly efficient bulkheterojunction solar cells based on dendritic oligothiophenes - From synthesis to device fabrication to characterization and stochastic
model-based simulation.

R. Thiedmann, A. Spettl, O. Stenzel, T. Zeibig, J.C. Hindson, Z. Saghi, N.C. Greenham, P.A. Midgley and V. Schmidt, Networks of nanoparticles in organic-inorganic composites: Algorithmic extraction and statistical analysis, Image Analysis and Stereology, 31 (2012) 23-42.

O. Stenzel, L.J.A. Koster, R. Thiedmann, S.D. Oosterhout, R.A.J. Janssen and V. Schmidt, A new approach to model-based simulation of disordered polymer blend solar cells, Advanced Functional Materials 22 (2012) 1236-1244.

B. Baumeier, O. Stenzel, C. Poelking, D. Andrienko and V. Schmidt, Stochastic modeling of molecular charge transport networks, Physical Review B 86 (2012) 184202.
T.J. Brereton, O. Stenzel, B. Baumeier, D.P. Kroese and V. Schmidt, Efficient simulation of charge transport in deep-trap media, In: C. Laroque, J. Himmelspach, R. Pasupathy, O. Rose, and A.M. Uhrmacher (eds.) Proceedings of the 2012 Winter Simulation Conference, IEEE, Piscataway 2012.



Projekt: 3

Organic solar cells based on oligothiophene derivatives

Christian Koerner, Chris Elschner, Nichole Cates Miller, Roland Fitzner, Franz Selzer, Egon Reinold, Peter Bäuerle, Michael F. Toney, Michael D. McGehee, Karl Leo, Moritz Riede; Probing the effect of substrate heating during deposition of DCV4T:C60 blend layers for organic solar cells, Organic Electronics 13 (2012) 623–631.

C. Koerner, H. Ziehlke, R. Gresser, R. Fitzner, E. Reinold, P. Bäuerle, K. Leo und M. Riede,K. Leo und M. Riede, Temperature Activation of the Photoinduced Charge Carrier Generation Efficiency in Quaterthiophene:C60 Mixed Films. The Journal of Physical Chemistry C Vol. 116, No. 47, pp 25097-25105 (2012)

Roland Fitzner, Elena Mena-Osteritz, Amaresh Mishra, Gisela Schulz, Egon Reinold, Matthias Weil, Christian Körner, Hannah Ziehlke, Chris Elschner, Karl Leo, Moritz Riede, Martin Pfeiffer, Christian Uhrich and Peter Bäuerle, "Correlation of π-Conjugated Oligomer Structure with Film Morphology and Organic Solar Cell Performance", J. Am. Chem. Soc. 134 (2012) 11064–11067, available online: DOI: 10.1021/ja302320c.

Roland Fitzner, Chris Elschner, Matthias Weil, Christian Uhrich, Christian Körner, Moritz Riede, Karl Leo, Martin Pfeiffer, Egon Reinold, Elena Mena-Osteritz, Peter Bäuerle, "Interrelation between Crystal Packing and Small-Molecule Organic Solar Cell Performance", Adv. Mat. Volume 24, 675-680, 2012, available online DOI: 10.1002/adma.201104439.



Projekt: 8

Influence of π−π stacking distance in low-band-gap PPE-PPV polymers on the morphology and performance of polymer-fullerene solar cells.


Kästner, C.; Ulbricht, C.; Egbe, D. A. M.; Hoppe, H. J.: "Polymer BHJ solar cell performance tuning by C60 fullerene derivative alkyl side-chain length", Polym. Sci. Polym. Phys. 2012, 50, 1562-1566

Troshin, P. A.; Olga A. Mukhacheva, O. A.; Andrey E. Goryachev, A. E.;  . Dremova,  N. N.; Dmitry Voylov, D.;  Ulbricht, C.; . Egbe, D. A. M.; Sariciftci, N. S.;  F. Razumov: "Material structure – composite morphology-photovoltaic performance relationship for organic bulk heterojunction solar cells ", V. F. ChemComm 2012, 48, 9477-9479

Camaioni, N.; Tinti, F.; Esposti, A. D.;  Righi, S.;  Usluer, Ö,  Boudiba, S.;  Egbe, D. A. M.: "Electron and hole transport in an anthracene-based conjugated polymer", Applied Physics Letters  2012, 101, 053302-1-3. (APL: Org. Electron. Photonics, 2012, 5, 165)

Kästner, C.;. Susarova, D. K.;  Ulbricht, C.;  Jadhav, R.;. Egbe, D. A. M.;  Rathgeber, S.; Troshin, P.; Hoppe, H. J.: "Morphology evaluation of a polymer-fullerene bulk heterojunction ensemble generated by the fullerene derivatization", Mater. Chem. 2012, 22, 15987-15997

Tore, N.; Parlak, E. A.; Usluer, Ö.; Egbe, D. A. M.;  San, S. E.; Aydogan, P.: "Effect of blend ratio on poly(p-phenylene-ethynylene)-alt-poly (p-phenylene-vinylene) polymer solar cell", Sol. Energy Mater. Sol. Cells 2012, 104, 39-44:

Usluer, Ö.; Kästner, C.; Abbas, M.; Ulbricht, C.; Cimrova, V.; Wild, A.; Birckner, E.; Tekin, N.;  Sariciftci, N. S.; Hoppe, H.; Rathgeber, S.; Egbe, D. A. M.: "Charge Carrier Mobility, Photovoltaic and Electroluminescent Properties of Anthracene-Based Conjugated Polymers Bearing Randomly Distributed Side-Chains",  J. Polym. Sci. Polym. Chem.2012, 50, 3425-3436 ( + front  inner cover illustration)



Projekt 9:

Sub-bandgap absorption in polymer-fullerene solar cells

F. Herrmann, S. Engmann, M. Presselt, H. Hoppe, S. Shokhovets and G. Gobsch, "Correlation between NIR-Vis absorption, intrinsic local and global sheet resistance of PEDOT:PSS thin films," Applied Physics Letters submitted (2012).

M. Presselt, F. Herrmann, H. Hoppe, E. Runge, S. Shokhovets and G. Gobsch, "Sub-Bandgap Absorption in Polymer-Fullerene Solar Cells Studied by Temperature Dependent External Quantum Efficiency and Absorption Spectroscopy," Chemical Physics Letters submitted (2012).


Projekt 12:

Influence of electric fields on morphology and performance of compatibilized all-polymer solar cells

Stelzl, F.F.; Würfel, U.: "Modeling the influence of doping on the performance of bulk heterojunction organic solar cells: One-dimensional effective semiconductor versus two-dimensional donor/acceptor model", PHYSICAL REVIEW B, 2012, 86 (7), 075315. DOI: 10.1103/PhysRevB.86.075315

Richter, T.V.; Braun, C.H.; Link, S.; Scheuble, M.; Crossland E.J.W; Stelzl, F.; Würfel, U.; Ludwigs, S.: "Regioregular Polythiophenes with Alkylthiophene Side Chains", Macromolecules, 45 (14), 2012, 5782-5788. DOI: 10.1021/ma2026644

Stelzl, F.F.; Schulz-Gericke, J.; Crossland E.; Ludwigs, S.; Würfel, U.: "Voltage-induced formation of accumulation layers at electrode interfaces in organic solar cells", Advanced Energy Materials 2 (8). 2012, 983-991. DOI: 10.1021/ma2026644

Mangold, H.S., Richter. T.V.; Link, S.; Würfel, U.; Ludwigs, S.: "Optoelectronic properties of hyperbranched polythiophenes", Journal of Physical Chemnistry B, 116 (1), 2012, 154-159, DOI: 10.1021/jp210822s


Projekt 14:

Controlled supramolecular and nanoscale morphologies for organic solar cells (II)

Dunbar, R. B.; Hesse, H. C.; Lembke, D.; Schmidt-Mende, L., Light-trapping plasmonic nanovoid arrays. Phys. Rev. B 2012, 85, 035301.

Hesse, H.C.;  Schaffer, C.; Hundschell, C.; Narita, A.; Feng, X.; Müllen, K.; Nickel, B.; Schmidt-Mende, L., Large polycyclic aromatic hydrocarbons for application in donor-acceptor photovoltaics. PSS:a  2012, DOI: 10.1002/pssa.201127571

Dunbar, R.B.; Pfadler, T.; Schmidt-Mende, L., Highly absorbing solar cells - a survey of plasmonic nanostructures. Opt.  Expr. 2012, (in press) DOI:


Projekt 15:

Tuning the Optical and Charge-Transporting Properties of the Electron-Accepting Phase in Polymer Solar Cells

M. Schubert, D. Dolfen, J. Frisch, S. Roland, R. Steyrleuthner, B. Stiller, Z. Chen, U. Scherf, N. Koch, A. Facchetti and . Neher, “Influence of Aggregation on the Performance of All-Polymer Solar Cells Containing Low-Bandgap Naphthalenediimide Copolymers”, Advanced Energy Materials, DOI: aenm201100601


Projekt 18:

Near IR sensitization of polymer/fullerene solar cells: controlling the morphology and transport in ternary blends

Ameri, T.;Min, J.;Li, N.;Machui, F.;Baran, D.;Forster, M.;Schottler, K. J.;Dolfen, D.;Scherf, U. and Brabec,C. J., “Performance enhancement of the P3HT/PCBM solar cells through the near IR sensitization using a small bandgap polymer”, Adv. En. Mat., 2, 1198, 2012.

Projekt 20:

Control of the nanoscale morphology of bulk heterojunction solar cells via chemical assembly of conjugated polymers on nanoparticle support

Senkovskyy, Volodymyr; Tkachov, Roman; Komber, Hartmut John, Andreas Sommer, Jens-Uwe Kiriy, Anton Mechanistic Insight into Catalyst-Transfer Polymerization of Unusual Anion-Radical Naphthalene Diimide Monomers: An Observation of Ni(0) Intermediates Macromolecules 2012, 46, 7770-7777   

Senkovskyy, V.; Senkovska, I.; Kiriy, A. Surface-Initiated Synthesis of Conjugated Microporous Polymers: Chain-Growth Kumada Catalyst-Transfer Polycondensation at Work. ACS Macro Letters 2012, 1, 494-498


Projekt 21:

Electronic properties of interfaces with conjugated oligo- and polymers


Erwan Varene, Lea Bogner, Christopher Bronner, and Petra Tegeder: Ultrafast exciton population, relaxation and decay dynamics in thin oligothiophene films, Phys. Rev. Lett., 109 (2012) 207601.# DOI: 10.1103/PhysRevLett.109.207601 #

Erwan Varene and Petra Tegeder: Polaron dynamics in thin polythiophene films studied with time-resolved photoemission, Appl. Phys. A, 107 (2012) 13-16 (Rapid Communication). # DOI: 10.1007/s00339-012-6819-4 #

Erwan Varene and Petra Tegeder: Dynamics of optically excited electrons in the conducting polymer PEDT:PSS, Appl. Phys. A, 106 (2012) 803-806. # DOI: 10.1007/s00339-012-6766-0#

Erwan Varene, Lea Bogner, Stephan Meyer, Yan Pennec, and Petra Tegeder: Coverage-dependent adsorption geometry of octithiophene on Au(111)"
Phys. Chem. Chem. Phys.14 (2012) 691-696. # DOI: 10.1039/C1CP22875G #



2011


Projekt: 1

Towards multijunction polymer solar cells with improved optoelectronic properties

B. Schmidt-Hansberg,M. Sanyal,M.F.G. Klein, M. Pfaff, N. Schnabel, S. Jaiser, A. Vorobiev, E. Müller, A. Colsmann, P. Scharfer, D. Gerthsen, U. Lemmer, E. Barrena, W. Schabel: Moving through the Phase Diagram: Morphology Formation in Solution Cast Polymer Fullerene Blend Films for Organic Solar Cells, ACS Nano 5, 8579-8590, (2011)

Colsmann, A. Pütz, A. Bauer, J. Hanisch, E. Ahlswede, U. Lemmer, Efficient Semi-Transparent Organic Solar Cells with Good Transparency Color Perception and Rendering Properties Advanced Energy Materials (2011)

F. M. Pasker, S. M. Le Blanc, G. Schnakenburg, S. Höger, Thiophene-2-aryl-2H-benzotriazole-thiophene Oligomers with Adjustable Electronic Properties Org. Lett. 13, 2338-2341 (2011)

M. Sanyal, B. Schmidt-Hansberg, M. F. G. Klein, C. Munuera, A. Vorobiev, A. Colsmann, P. Scharfer, U. Lemmer, W. Schabel, H. Dosch, E. Barrena, Effect of Photovoltaic Polymer/Fullerene Blend Composition Ratio on Microstructure Evolution during Film Solidification Investigated in Real Time by X-ray Diffraction Macromolecules 44, 3795--3800 (2011)

M. Sanyal, B. Schmidt-Hansberg, M. F. G. Klein, A. Colsmann, C. Munuera, A. Vorobiev, U. Lemmer, W. Schabel, H. Dosch, E. Barrena, In Situ X-Ray Study of Drying-Temperature Influence on the Structural Evolution of Bulk-Heterojunction Polymer–Fullerene Solar Cells Processed by Doctor-Blading Advanced Energy Materials 1, 363--367 (2011)

M. Reinhard, J. Hanisch, Z. -H. Zhang, E. Ahlswede, A. Colsmann, U. Lemmer, Inverted organic solar cells comprising a solution-processed cesium fluoride interlayer Appl. Phys. Lett. 98, 053303 (2011)

B. Schmidt-Hansberg, M. Baunach, J. Krenn, S. Walheim, U. Lemmer, P. Scharfer, W. Schabel, Spatially resolved drying kinetics of multi-component solution cast films for organic electronics Chemical Engineering and Processing 50, 509-515 (2011)


Projekt: 2

An integrated approach towards highly efficient bulkheterojunction solar cells based on dendritic oligothiophenes - From synthesis to device fabrication to characterization and stochastic
model-based simulation.

C. Q. Ma, W. Pisula, C. Weber, X. L. Feng, K. Müllen, P. Bäuerle, Dendritic Oligothiophenes Terminated with Tris(alkyloxy)phenylethynyl Tails: Synthesis, Physical Properties, and Self-Assembly, Chem. Eur. J. 17, 1507-1518, (2011)

S.D. Oosterhout, L.J.A. Koster, S.S. van Bavel, J. Loos, O. Stenzel, R. Thiedmann, V. Schmidt, B. Campo, T.J. Cleij, L. Lutzen, D. Vanderzande, M.M. Wienk and R.A.J. Janssen, Controlling the morphology and efficiency of hybrid ZnO:polythiophene solar cells via side chain functionalization. Advanced Energy Materials 1 (2011), 90-96.

R. Thiedmann, H. Hassfeld, O. Stenzel, L.J.A. Koster, S.D. Oosterhout, S.S. van Bavel, M.M. Wienk, J. Loos, R.A.J. Janssen and V. Schmidt, A multiscale approach to the representation of 3D images, with applications to polymer solar cells, Image Analysis and Stereology 30 (2011) 19-30.

O. Stenzel, H. Hassfeld, R. Thiedmann, L. J. A. Koster, S. D. Oosterhoot, S. S. van Bavel, M. M. Wienk, J. Loos, R. A. J. Janssen, V. Schmidt, Spacial modelling of the 3D morphology of hybrid polymer-zno solar cells, based on electron tomography data. Annals of Applied Statistics 5 (2011) 1920-1947.

S. D. Oosterhout, M. M. Wienk, M. Al-Hashimi, M. Heeney, R. A. J. Janssen, Hybrid polymer solar cells from zinc oxide and poly(3-hexylselenophene), Journal of Physical Chemistry C 115 (2011) 18901-18908.

V. S. Gevaerts, L. J. A. Koster, M. M. Wienk, R. A. J. Janssen, Discriminating Between Bilayer and bulk heterojunction polymer:fullerene solar cells using the external quantum efficiency, ACS Applied Materials and Interfaces 3 (2011) 3252-3255.

L. J. A. Koster, M. Kemerink, M. M. Wienk, K. Maturova, R. A. J. Janssen, Quantifying bimolecular recombination losses in organic bulk heterojunction solar cells, Advanced Materials 23 (2011) 1670-1674.



Project: 3

Organic solar cells based on oligothiophene derivatives

H. Ziehlke, L. Burtone, C. Koerner, R. Fitzner, E. Reinold, P. Bäuerle, K. Leo, and M. Riede, Increase of charge carrier lifetime in dicyanovinyl-quinquethiophene:fullerene blends upon deposition on heated substrates, accepted for publication, Organic Electronics 12, 2258-2267 (2011)

H. Ziehlke, R. Fitzner, C. Koerner, R. Gresser, E. Reinold, P. Bäuerle, K. Leo, and M. K. Riede, Side Chain Variations on a Series of Dicyanovinyl-terthiophenes: A Photoinduced Absorption Study, J. Phys. Chem. A 115, 8437 (2011).

R. Fitzner, E. Reinold, A. Mishra, E. Mena-Osteritz, H. Ziehlke, C. Körner, K. Leo, M. Riede, M. Weil, O. Tsaryova, A. Weiß, C. Uhrich, M. Pfeiffer, and P. Bäuerle, Dicyanovinyl–Substituted Oligothiophenes: Structure-Property Relationships and Application in Vacuum-Processed Small Molecule Organic Solar Cells, Adv. Funct. Mater. 21, 897 (2011).


Projekt: 4

Charge separation at nanostructured molecular donor-acceptor interfaces


K. Broch, U. Heinemeyer, A. Hinderhofer, F. Anger, R. Scholz, A. Gerlach, F. Schreiber, Optical evidence for intermolecular coupling in mixed films of pentacene and perfluoropentacene, Phys. Rev. B 83, 245307, (2011)

A. Hinderhofer, C. Frank, T. Hosokai, A. Resta, A. Gerlach, and F. Schreiber, Structure and morphology of co-evaporated pentacene-perfluoropentacene thin films, J. Chem. Phys. 134, 104702, (2011)

A. Hinderhofer, T. Hosokai, C. Frank, J. Novák, A. Gerlach, and F. Schreiber, Templating effect for organic heterostructure film growth: Perfluoropentacene on Diindenoperylene, J. Phys. Chem. C 115, 1615516160, (2011)

U. Hörmann, J. Wagner, M. Gruber, A. Opitz, W. Brütting, Approaching the ultimate open circuit voltage in thiophene based single junction solar cells by applying diindenoperylene as acceptor, phys. stat. sol. RRL 5, 241-243, (2011)

M. Horlet, M. Kraus, W. Brütting, A. Opitz, Diindenoperylene as ambipolar semiconductor: influence of electrode materials and mobility asymmetry in organic field-effect transistors, Appl. Phys. Lett. 98, 233304, (2011)

M. Kraus, S. Haug, W. Brütting, A. Opitz, Achievement of balanced electron and hole mobility in copper-phthalocyanine field-effect transistors by using a crystalline aliphatic passivation layer, Org. Electron. 12, 731735, (2011)

P. Amsalem, J. Niederhausen, J. Frisch, A. Wilke, B. Bröker, A. Vollmer, R. Rieger, K. Müllen, J.P. Rabe, N. Koch, Metal-to-Acceptor Charge Transfer through a Molecular Spacer Layer, J. Phys. Chem. C 115, 1750317507, (2011)

A. Wilke, P. Amsalem, J. Frisch, B. Bröker, A. Vollmer, N. Koch, Electric fields induced by energy level pinning at organic heterojunctions, Appl. Phys. Lett., 98, 123304, (2011)

Project: 6

p-B-n organic junctions for efficient photovoltaics

A. V. Tunc, A. De Sio, D. Riedel, F. Deschler, E. Da Como, J. Parisi and E. von Hauff Molecular doping of polymer:fullerene solar cells: effects on transport and solar cells, Organic Electronics in press, (2011)

F. Deschler, E. Da Como, T. Limmer, R. Tautz, T. Godde, M. Bayer, E. von Hauff, S. Yilmaz, S. Allard, U. Scherf
and J. Feldmann, Physical Review Letters (2011) accepted

A. De Sio, T. Madena, R. Huber, J. Parisi, S. Neyshtadt, F. Deschler, E. Da Como, S. Esposito, and E. von Hauff,
Solvent additives for tuning the photovoltaic properties of polymer-fullerene solar cells,
Sol. Energ. Mat. Sol. Cells, 95 (2011) 3536-3542


Project: 7

Interplay between microscopic structure and intermolecular charge transfer processes in polymer-fullerene bulkheterojunctions

A. Sperlich, H. Kraus, C. Deibel, H. Blok, J. Schmidt, V. Dyakonov, Reversible and irreversible interactions of P3HT with oxygen studied by spin-sensitive methods.  J. Phys. Chem. B 115, 13513 (2011) http://dx.doi.org/10.1021/jp2077215

A. Sperlich, M. Liedtke, J. Kern, H. Kraus, C. Deibel, S. Filippone, J. L. Delgado, and V. Dyakonov, Photoinduced C70 radical anions in polymer:fullerene blends.  Phys. Status Solidi RRL 5, 128 (2011).

M. Liedtke, A. Sperlich, H. Kraus, A. Baumann, C. Deibel, M. J. M. Wirix, J. Loos, C. M. Cardona, and V. Dyakonov, Triplet Exciton Generation in Bulk-Heterojunction Solar Cells Based on Endohedral Fullerenes.  J. Am. Chem. Soc. 133, 9088–9094 (2011).

T. J. Savenije, A. Sperlich, H. Kraus, O. Poluektov, M Heeney and V. Dyakonov, Observation of bi-polarons in blends of conjugated copolymers and fullerene derivatives, Phys. Chem. Chem. Phys., 2011, 13, 16579-16584.

E.-C. Spitzner, C. Riesch, R. Magerle, Subsurface Imaging of Soft Polymeric Materials with Nanoscale resolution, ACS Nano 5, 315 (2011).

M. Zerson, E.-C. Spitzner, C. Riesch, R. Lohwasser, M. Thelakkat and R. Magerle, Subsurface Mapping of Amorphous Surface Layers on Poly(3-hexylthiophene). Macromolecules 44, 5874 (2011).


Projekt: 8

Influence of π−π stacking distance in low-band-gap PPE-PPV polymers on the morphology and performance of polymer-fullerene solar cells.

Rathgeber, S.; Perlich, J.; Kühnlenz, F.; Türk, S.; Egbe, D. A. M.; Hoppe, H.; Gehrke, R.: "Correlation between polymer architecture, mesoscale structure and photovoltaic performance in side-chain-modified poly(p-arylene-ethynylene)-alt-poly(p-arylene-vinylene): PCBM bulk-heterojunction solar cells", Polymer 2011, 52, 3819-3826

Adam, G.; Pivrikas, A.; Ramil, A. M.; Tadesse, S.; Yohannes, T.; Sariciftci, N. S.; Egbe, D. A. M.: "Mobility and Photovoltaic Performance Studies on Polymer Blends: Effects of Side Chains Volume Fraction",  J. Mater. Chem. 2011, 21 (8), 2594 – 2600. (+back inner cover illustration)

Susarova, D. K.; Khakina, E. A.; Troshin, P. A.; Goryachev, A. E.; Sariciftci, N. S.; Razumov, V.; Egbe, D. A. M: "Photovoltaic Performance of PPE-PPV Copolymers: Effect of the Fullerene Component", J. Mater. Chem. 2011, 21, 2356-2361.



Projekt 9:

Sub-bandgap absorption in polymer-fullerene solar cells

M. Presselt, F. Herrmann, H. Hoppe, E. Runge, S. Shokhovets and G. Gobsch, "Influence of Phonon Scattering on Exciton and Charge Diffusion in Polymer-Fullerene Solar Cells," Advanced Energy Materials submitted (2011).


Project: 10

Organic solar cells from optimized self-assembling block copolymers with controlled nanoscale morphology

R. H. Lohwasser and M. Thelakkat, Toward Perfect Control of End Groups and Polydispersity in Poly(3-hexylthiophene) via Catalyst Transfer Polymerization, Macromolecules, (2011), 44 (9), 3388–3397.

S. Hüttner, M. Sommer, P. Kohn, J. Hodgkiss, T. Thurn-Albrecht, R.. H. Friend, U. Steiner, M. Thelakkat, Tunable charge transport using supramolecular self-assembly of nanostructured crystalline block copolymers, ACS Nano, (2011), 5 (5), 3506–3515.

C. R. Singh, M. Sommer, M. Himmerlich, A. Wicklein, S. Krischok, M. Thelakkat, and H. Hoppe, Morphology controlled open circuit voltage in polymer solar cells, P hys. Status Solidi RRL 5, No. 7, 247– 249 (2011)

A. S. Lang and M. Thelakkat, Modular synthesis of poly(perylene bisimides) using click chemistry: A comparative study, Polymer Chemistry  2011, ASAP DOI: 10.1039/c1py00191d.

M. Zerson, E.-C. Spitzner, C. Riesch, R. Lohwasser, M. Thelakkat, and R. Magerle, Subsurface mapping of amorphous surface layers on poly(3-hexylthiophene), Macromolecules 44, 5874 (2011).


Project 11

Electronic properties of interfaces with conjugated polymers.

E. Varene, L. Bogner, S. Meyer, Y. Pennec, P. Tegeder, Coverage-dependent adsorption geometry of octithiophene on Au(111), Phys. Chem. Chem. Phys. in press, (2011)

E. Varene, Y. Pennec, P. Tegeder, Assembly and electronic structure of octithiophene on Au(111), Chem. Phys. Lett. 515, 141-145, (2011)

E. Varene, I. Martin, P. Tegeder, Optically induced inter- and intrafacial electron transfer probed by two-photon photoemission: electronic states of sexithiophene on Au(111), J. Phys. Chem. Lett. 2, 252-256, (2011)


Projekt: 13

Bulk heterojunction photovoltaic cells based on merocyanine dye supramolecular polymers.

N. M. Kronenberg, H. Bürckstümmer, M. Deppisch, F. Würthner, K. Meerholz, Optimized solution-processed merocyanine: PCBM organic bulk heterojunction solar cell, J. Photon. Energy 1, 011101-1–011101-7, (2011)

V. Steinmann, N. M. Kronenberg, M. R. Lenze, S. M. Graf, D. Hertel, K. Meerholz, H. Bürckstümmer, E. V. Tulyakova, F. Würthner, Simple, Highly, Efficient Vacuum-Processed Bulk Heterojunction Solar Cells Based on Merocyanine Dyes, Adv. Energy Mater. 1, 888–893, (2011)

V. Steinmann, N. M. Kronenberg, M. R. Lenze, S. M. Graf, D. Hertel, H. Bürckstümmer, F. Würthner, K. Meerholz, A simple merocyanine tandem solar cell with extraordinarily high open-circuit voltage, Appl. Phys. Lett. 2011, 99, 193306

Parallel Bulk-Heterojunction Solar Cell by Electrostatically Driven Phase Separation, A. Ojala, H. Bürckstümmer, M. Stolte, R. Sens, H. Reichelt, P. Erk, J. Hwang, D. Hertel, K. Meerholz, F. Würthner, Adv. Mater. 23, 5398–5403, (2011)

H. Bürckstümmer, E. V. Tulyakova, M. Deppisch, M R. Lenze, N. M. Kronenberg, M. Gsänger, M. Stolte, K. Meerholz, F. Würthner, Efficient Solution-Processed Bulk Heterojunction Solar Cells by Antiparallel Supramolecular Arrangement of Dipolar Donor-Acceptor Dyes, Angew. Chem. 123, 11832–11836; Angew. Chem. Int. Ed. 2011, 50, 11628–11632, (2011)

Projekt 14:

Controlled supramolecular and nanoscale morphologies for organic solar cells (II)

Hesse, H. C.; Lembke, D.; Dossel, L.; Feng, X.; Mullen, K.; Schmidt-Mende, L., Nanostructuring discotic molecules on ITO support. Nanotechnology 2011, 22

Hesse, H. C.; Weickert, J.; Hundschell, C.; Feng, X. L.; Mullen, K.; Nickel, B.; Mozer, A. J.; Schmidt-
Mende, L., Perylene Sensitization of Fullerenes for Improved Performance in Organic Photovoltaics. Advanced Energy Materials 2011, 1 (5), 861-869;

Sun, H. Y.; Weickert, J.; Hesse, H. C.; Schmidt-Mende, L., UV light protection through TiO(2) blocking layers for inverted organic solar cells. Solar Energy Materials and Solar Cells 2011, 95 (12), 3450-3454;

Weickert, J.; Auras, F.; Bein, T.; Schmidt-Mende, L., Characterization of Interfacial Modifiers for Hybrid Solar Cells. Journal of Physical Chemistry C 2011, 115 (30), 15081-15088;

Weickert, J.; Dunbar, R. B.; Hesse, H. C.; Wiedemann, W.; Schmidt-Mende, L., Nanostructured Organic and Hybrid Solar Cells. Advanced Materials 2011, 23 (16), 1810-1828;

Weickert, J.; Palumbiny, C.; Nedelcu, M.; Bein, T.; Schmidt-Mende, L., Controlled Growth of TiO(2) Nanotubes on Conducting Glass. Chemistry of Materials 2011, 23 (2), 155-162.

Al-Hussein, M.; Hesse, H. C.; Weickert, J.; Dössel, L.; Feng, X.; Müllen, K.; Schmidt-Mende, L., Structural properties of the active layer of discotic hexabenzocoronene/perylene diimide bulk hetero junction photovoltaic devices: The role of alkyl side chain length. Thin Solid Films 2011, 520 (1), 307-313;

Wang, S. H.; Gao, P.; Liebewirth, I.; Kirchhoff, K.; Pang, S. P.; Feng, X. L.; Pisula, W.; Mullen, K., Microribbon Field-Effect Transistors Based on Dithieno[2,3-d;2,3 '-d]benzo[1,2-b;4,5-b ']dithiophene Processed by Solvent Vapor Diffusion. Chemistry of Materials 2011, 23, (22), 4960-4964.

Kajen, R. S.; Chandrasekhar, N.; Feng, X. L.; Mullen, K.; Su, H. B., Vibrational excitations in molecular layers probed by ballistic electron microscopy. Nanotechnology 2011, 22, (43).

Wang, S. H.; Dossel, L.; Mavrinskiy, A.; Gao, P.; Feng, X. L.; Pisula, W.; Mullen, K., Self-Assembly and Microstructural Control of a Hexa-peri-hexabenzocoronene-Perylene Diimide Dyad by Solvent Vapor Diffusion. Small 2011, 7, (20), 2841-2846.

Liu, R. L.; Wu, D. Q.; Feng, X. L.; Mullen, K., Bottom-Up Fabrication of Photoluminescent Graphene Quantum Dots with Uniform Morphology. Journal of the American Chemical Society 2011, 133, (39), 15221-15223.

Yang, S. B.; Feng, X. L.; Mullen, K., Sandwich-Like, Graphene-Based Titania Nanosheets with High Surface Area for Fast Lithium Storage. Advanced Materials 2011, 23, (31), 3575.

Wang, S. H.; Kivala, M.; Lieberwirth, I.; Kirchhoff, K.; Feng, X. L.; Pisula, W.; Mullen, K., Dip-Coating-Induced Fiber Growth of a Soluble Heterotriangulene. ChemPhysChem 2011, 12, (9), 1648-1651.

Pisula, W.; Feng, X. L.; Mullen, K., Charge-Carrier Transporting Graphene-Type Molecules. Chemistry of Materials 2011, 23, (3), 554-567.

Norouzi-Arasi, H.; Pisula, W.; Mavrinskiy, A.; Feng, X. L.; Mullen, K., Synthesis and Self-Assembly of Macrocyclic Mesogens Based on 1,10-Phenanthroline. Chemistry-an Asian Journal 2011, 6, (2), 367-371.

Dossel, L.; Gherghel, L.; Feng, X. L.; Mullen, K., Graphene Nanoribbons by Chemists: Nanometer-Sized, Soluble, and Defect-Free. Angewandte Chemie-International Edition 2011, 50, (11), 2540-2543.

Wu, D. Q.; Liu, R. L.; Pisula, W.; Feng, X. L.; Mullen, K., Two-Dimensional Nanostructures from Positively Charged Polycyclic Aromatic Hydrocarbons. Angewandte Chemie-International Edition 2011, 50, (12), 2791-2794.

Yang, S. B.; Feng, X. L.; Wang, X. C.; Mullen, K., Graphene-Based Carbon Nitride Nanosheets as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reactions. Angewandte Chemie-International Edition 2011, 50, (23), 5339-5343.

Projekt 15:

Tuning the Optical and Charge-Transporting Properties of the Electron-Accepting Phase in Polymer Solar Cells

J. Frisch, M. Schubert, E. Preis, J. P. Rabe, D. Neher, U. Scherf, N. Koch, “Full electronic structure across a polymer heterojunction solar cell”, Journal of Materials Chemistry, accepted

J. C Blakesley, M. Schubert, R. Steyrleuthner, Z. Chen, A. Facchetti, and D. Neher, “Time-of-flight measurements and vertical transport in a high electron-mobility polymer”, Applied Physics Letters, 99, 183310 (2011)

J. Kniepert, M. Schubert, J. C. Blakesley, and D. Neher, “Photogeneration and Recombination in P3HT/PCBM Solar Cells Probed by Time-Delayed Collection Field Experiments”, Journal of Physical Chemistry Letters, 2, 700 (2011)


Projekt 16:

Photogeneration, recombination and extraction of charge carriers in organic solar cells

M. Misra, D. Andrienko, B. Baumeier, J.-L. Faulon, O. A. von Lilienfeld, Toward quantitative structure-property 
relationships for charge transfer rates of polycyclic aromatic hydrocarbons, J. Chem. Theor. Comp.,
2549-2555, (2011)

F. May, V. Marcon, M. R. Hansen, F. Grozema, D. Andrienko, Relationship between supramolecular assembly
and charge-carrier mobility in discotics: The impact of side chains, J. Mater. Chem., 21, 9538-9545, (2011)

V. Ruehle, A. Lukyanov, F. May, M. Schrader, T. Vehoff, J. Kirkpatrick, B. Baumeier, D. Andrienko,
Microscopic simulations of charge transport in disordered organic semiconductors, J. Chem. Theor. Comp.,
3335-3345, (2011)

J. Kern, S. Schwab, C. Deibel, V. Dyakonov, Binding energy of singlet excitons and charge transfer complexes in MDMO-PPV:PCBM solar cells, Phys. Status Solidi 5, 364 (RRL) (2011)


Projekt 17:

Controlling the electronic interface properties in polymerfullerene bulk-heterojunction solar cells

T. Stubhan, H. Oh, L. Pinna, J. Krantz, I. Litzov, C.J. Brabec: Inverted organic solar cells using a solution processed aluminum-doped zinc oxide buffer layer, Org. Elec. 12 (2011) 1539
 
T. Stubhan, T. Ameri, M. Salinas, J. Krantz, F. Machui, M. Halik, C. J. Brabec: High shunt resistance in polymer solar cells comprising a MoO3 hole extraction layer processed from nanoparticle suspension, Appl. Phys. Lett. 98 (2011) 253308
 
M. Rydzek, M. Reidinger, M. Arduini-Schuster, J. Manara: Low-emitting surfaces prepared by applying transparent aluminum-doped zinc oxide coatings via a sol–gel process, Thin Solid Films (2011) doi:10.1016/j.tsf.2011.04.105


Projekt 18:

Near IR sensitization of polymer/fullerene solar cells: controlling the morphology and transport in ternary blends

F. Machui, S. Abbott, D. Waller, M. Koppe, C. J. Brabec, Macromol. Chem. Phys. 2011, 212, 2159.

N. Li, F. Machui, D. Waller, M. Koppe, and C. J. Brabec, Solar Energy Materials & Solar Cells 2011, 95, 3465.


Projekt 20:

Control of the nanoscale morphology of bulk heterojunction solar cells via chemical assembly of conjugated polymers on nanoparticle support

Bhaskar, R.; Siram, K.; Tandy, K.; Horecha, M.; Formanek, P.; Stamm, M.; Gevorgyan, S.; Krebs, F. C.;  Kiriy, A.; 
Meredith, P.; Burn, P. L.; Namdas, E. B.; Patil, S. Synthesis and Self-Assembly of Donor-Acceptor-Donor
Based Oligothiophenes and Their Optoelectronic Properties J. Phys. Chem. C 115, 14369-14376, (2011)
Tkachov, R.; Senkovskyy, V.; Komber, H.; Kiriy, A. Influence of Alkyl Substitution Pattern on Reactivity of 
Thiophene-Based Monomers, in Kumada: Catalyst-Transfer Polycondensation Macromolecules 44, 2006-2015,
(2011)

Kiriy, A.; Senkovskyy, V. ; Sommer, M. Kumada CT-Polycondensation: Mechanism, Opportunities, Challenges,
Macromol. Rapid Commun. 32, 1503-1517, (2011)

Einat, Kiriy, Huck. Chain-growth Suzuki polymerization of n-type fluorene copolymers,
Macromolecules 44, 9057–9061, (2011)

V. Senkovskyy, R. Tkachov, H. Komber, M. Sommer, M. Heuken, B. Voit, W.T.S. Huck, V. Kataev, A. Petr, A. Kiriy,
Chain-Growth Polymerization of Unusual Anion-Radical Monomers Based on Naphthalene Diimide:
A New Route to well-defined n-Type Conjugated Copolymers. J. Am. Chem. Soc. 133, 19966, (2011)

H. Komber, V. Senkovskyy, R. Tkachov, K. Johnson, A. Kiriy, W. T. S. Huck, M. Sommer Ring walking versus
trapping of Nickel(0) during Kumada catalyst transfer polycondensation using externally initiated
electron-accepting thiophene-benzothiadiazole-thiophene precursors, Macromolecules 44, 9057, (2011)
Elmalem, E.; Kiriy, A.; Huck, W. T. S. Chain-growth Suzuki polymerization of n-type fluorene copolymers Macromolecules 2011, 44, 9057–9061.


2010


allgemein:

M. Riede. A. Polte, K. Leo , "Sonnige Aussichten mit organischen Solarzellen" Forschung spezial Energie 35 issue suppl. 1, 22-27 (2010)

Projekt: 1

Polymeric solar cells with improved properties are fabricated and investigated. The film formation, morphology and optoelectronic properties are studied.

F. Nickel, A. Puetz, M. Reinhard, H. Do, C. Kayser, A. Colsmann and U. Lemmer, “Cathodes comprising highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) for semi-transparent polymer solar cells”, Organic Electronics (2010) (online available DOI: 10.1016/j.orgel.2009.12.009)

S. W. Kettlitz, S. Valouch und U. Lemmer, Organic solar cell degradation probed by the nanosecond photoresponse Applied Physics A: Materials Science & Processing 99, 805-809 (2010)


Projekt: 2

An integrated approach towards highly efficient bulk-heterojunction solar cell
based on dendritic oligothiophenes - From synthesis to device abrication to characterization and stochastic model-based simulation.

W. W. H. Wong, C. Q. Ma, W. Pisula, C. Yan, X. L. Feng, D. J. Jones, K. Mullen, R. A. J. Janssen, P. Bäuerle, A. B. Holmes, Self-Assembling Thiophene Dendrimers with a Hexa-peri-hexabenzocoronene Core-Synthesis, Characterization and Performance in Bulk Heterojunction Solar Cells, Chem. Mater. 22, 457-466, (2010)

L. J. A. Koster, Charge carrier mobility in disordered organic blends for photovoltaics, Physical Review B 81 (2010) 205318.



Projekt: 4

Charge separation at nanostructured molecular donor-acceptor interfaces


R.J. Stöhr, G.J. Beirne, P. Michler, R. Scholz, J. Wrachtrup, J. Pflaum, Enhanced photoluminescence from self-organized rubrene single crystal surface structures, Appl. Phys. Lett. 96, 231902, (2010)

J. Wagner, M. Gruber, A. Hinderhofer, A. Wilke, B. Bröker, J. Frisch, P. Amsalem, A. Vollmer, A. Opitz, N. Koch, F. Schreiber, W. Brütting, High fill factor and open circuit voltage in organic photovoltaic cells with diindenoperylene as donor material, Adv. Funct. Mater. 20, 42954303, (2010)

A. Opitz, J. Wagner, W. Brütting, I. Salzmann, N. Koch, J. Manara, J. Pflaum, A. Hinderhofer, F. Schreiber, Charge separation at molecular donor-acceptor interfaces: correlation between interface morphology and solar cell performance, IEEE J. Sel. Top. Quant. El. 16, 1707-1717, (2010)

A. Wilke, T. Mizokuro, R.-P. Blum, J.P. Rabe, N. Koch, Electronic Properties of Cu-Phthalocyanine/Fullerene Planar and Bulk Heterojunctions on PEDOT:PSS, IEEE J. Sel. Top. Quant. El. 16, 1732-1737, (2010)

A. Hinderhofer, A. Gerlach, S. Kowarik, F. Zontone, J. Krug, F. Schreiber, Smoothing and coherent structure formation in organic-organic heterostructure growth, Europhys. Lett. 91, 56002, (2010)

U. Heinemeyer, K. Broch, A. Hinderhofer, M. Kytka, R. Scholz, A. Gerlach, F. Schreiber, Real-time changes in the optical spectrum of organic semiconducting films and their thickness regimes during growth, Phys. Rev. Lett. 104, 257401, (2010)

K. Akaike, A. Opitz, J. Wagner, W. Brütting, K. Kanai, Y. Ouchi, K. Seki, Unoccupied states in copper phthalocyanine/fullerene blended films determined by inverse photoemission spectroscopy, Org. Electron. 11, 18531857, (2010)


Projekt: 5

Interface properties and electronic structure of thiophene-based materials for organic solar cells.

Hintz, H.; Peisert, H.; Aygül, U.; Latteyer, F.; Biswas, I.; Nagel, P.; Merz, M.; Schuppler, S.; Breusov, D.; Allard, S.; Scherf, U.; Chassé, T,; "Electronic Structure and Interface Properties of a Model Molecule for Organic Solar Cells", ChemPhysChem 11, 269 (2010)


Projekt: 6

Low bandgap dendrimer sytems: Synthesis, spectroscopy and microscopy of composite films for photovoltaics.

Markus Hallermann, Enrico Da Como, Jochen Feldmann, Marta Izquierdo, Salvatore Filippone, Nazario Martin, Sabrina Jüchter, and Elizabeth von Hauff, "Correlation between charge transfer exciton recombination and photocurrent in polymer/fullerene solar cells" Applied Physics Letters, accepted (2010)


Project: 7

Interplay between microscopic structure and intermolecular charge transfer processes in polymer-fullerene bulkheterojunctions

Spin Signatures of Photogenerated Radical Anions in Polymer-[70]Fullerene Bulk Heterojunctions: High Frequency Pulsed EPR Spectroscopy. O. G. Poluektov, S. Filippone, N. Martín, A. Sperlich, C. Deibel, and V. Dyakonov, J. Phys. Chem. B 114, 14426 (2010).

Spectroscopic Signatures of Photogenerated Radical Anions in Polymer- [C70]Fullerene Bulk Heterojunctions. M. Liedtke, A. Sperlich, H. Kraus, C. Deibel, V. Dyakonov, S. Filippone, J. L. Delgado, N. Martín, and O. G. Poluektov ECS Transactions 28, 3–10 (2010).


Projekt: 8

Influence of π−π stacking distance in low-band-gap PPE-PPV polymers on the morphology and performance of polymer-fullerene solar cells.

S. Rathgeber, D. Bastos de Toledo, E. Birckner, Harald Hoppe, D.A.M. Egbe, “Intercorrelation between Structural Ordering and Emission Properties in Photoconducting Polymers”, Macromolecules 43, 306 (2010):.

Jadhav, R.; Türk, S.; Kühnlenz, F.; Cimrova, V.; Rathgeber, S.; Egbe, D. A. M.; Hoppe, H. Anthracene-Containing PPE-PPV Copolymers: Effect of Side-Chain Nature and Length on Photophysical and Photovoltaic Properties Phys. Status Solidi A 2009, 12, 2695-2699 (Back cover artwork)

Egbe, D. A. M.; Türk, S.; Rathgeber, S.; Kühnlenz, F.; Jadhav, R.; Wild, A.; Birckner, E.; Adam, G.; Pivrikas, A.; Cimrova, V.; Knör, G.; Sariciftci, N. S.; Hoppe, H. Anthracene Based Conjugated Polymers: Correlation between π-π-Stacking Ability, Photophysical Properties, Charge Carrier Mobility, and Photovoltaic Performance Macromolecules 2010, 43, 1261-1269.DOI: 10.1021/ma902273s

Günes, S.; Wild, A.; Cevik, E.; Pivrikas, A.; Schubert, U.S.; Egbe, D. A. M. Effect of shifting of aromatic rings on charge carrier mobility and photovoltaic response of anthracene and thiophene-containing MEH-PPE-PPVs Sol. Energy Mater. Sol. Cells 2010, 94, 484–491.

Egbe, D. A. M.; Adam, G.; Pivrikas, A.; Ramil, A. M.; Birckner, E.; Cimrova, V.; Hoppe, H.; Sariciftci: "Improvement in Carrier Mobility and Photovoltaic Performance Through Random Distribution of Segments of Linear and Branched Side Chains", N. S. J. Mater. Chem. 2010, 20, 9726-9734.

Egbe, D. A. M.; Türk, S.; Rathgeber, S.; Kühnlenz, F.; Jadhav, R.; Wild, A.; Birckner, E.; Adam, G.; Pivrikas, A.; Cimrova, V.; Knör, G.; Sariciftci, N. S.; Hoppe, H.: "Anthracene Based Conjugated Polymers: Correlation between π-π-Stacking Ability, Photophysical Properties, Charge Carrier Mobility, and Photovoltaic Performance", Macromolecules 2010, 43, 1261-1269.

Rathgeber, S.; Bastos de Toledo, D.; Birckner, E.; Hoppe, H.; Egbe, D. A. M.: "Intercorrelation between Structural Ordering and Emission Properties in Photoconducting Polymers", Macromolecules 2010, 43, 306-315.



Projekt 9:

Sub-bandgap absorption in polymer-fullerene solar cells

M. Presselt, M. Bärenklau, R. Rösch, W. J. D. Beenken, E. Runge, S. Shokhovets, H. Hoppe and G. Gobsch, "Sub-Bandgap Absorption in Polymer-Fullerene Solar Cells," Applied Physics Letters 97, 253302 (2010).


Projekt: 10

Organic solar cells from optimized self-assembling block copolymers with controlled nanoscale morphology.

A. Wicklein, P. Kohn, L. Ghazaryan, T. Thurn-Albrecht and M. Thelakkat, Synthesis and structure elucidation of discotic liquid crystalline perylene imide benzimidazole, ChemComm  46, 2328–2330 (2010).

Z. Wu, A. Petzold, T. Henze, T. Thurn-Albrecht, R. Lohwasser, M. Sommer, and M. Thelakkat, Hierarchical, temperature and molecular weight dependent equilibrium structures in semiconducting poly(3-hexylthiophene), Macromolecules  43, 4646-4653 (2010) .

A. S. Lang, A. Neubig, M. Sommer and M. Thelakkat, NMRP versus “Click”-Chemistry for the Synthesis of Semiconductor Polymers carrying pendant Perylene Bisimides, Macromolecules 43 (17),  7001–7010 (2010)

M. Sommer, S. Huettner and M. Thelakkat, Donor-Acceptor Diblock Copolymers for Photovoltaic Applications, J. Mater. Chem. 2010, 20, 10788-10797.

A. Wicklein, M. Muth and M. Thelakkat, Room Temperature Liquid Crystalline Perylene Diester Benzimidazoles With Extended Absorption, J Mater Chem. 20, 8646-8652 (2010).

O. F. Pascui, R. Lohwasser, M. Sommer,M. Thelakkat, T. Thurn-Albrecht, and K. Saalwächter, High Crystallinity and Nature of Crystal-Crystal Phase Transformations, in Regioregular Poly(3-hexylthiophene), Macromolecules (2010) 43,  9401-9410.


Projekt: 12

All-polymer solar cells based on thiophene-Based copolymers.


T.V. Richter, F. Stelzl, J. Schulz-Gericke, B. Kerscher, U. Würfel, M. Niggemann, S. Ludwigs, "Room-temperature vacuum-induced ligand removal and patterning of ZnO nanoparticles: from semiconducting films towards printed electronics", J. Mater. Chem. 20, 874 (2010).


Projekt: 13

Bulk heterojunction photovoltaic cells based on merocyanine dye supramolecular polymers.

H. Bürckstümmer, N. M. Kronenberg, M. Gsänger, M. Stolte, K. Meerholz, F. Würthner, Tailored merocyanine dyes for solution-processed BHJ solar cells,  J. Mater. Chem. 20, 240–243, (2010)

H. Bürckstümmer, N. M. Kronenberg, K. Meerholz, F. Würthner, Near-Infrared Absorbing Merocyanine Dyes for Bulk Heterojunction Solar Cells, Org. Lett. 12, No. 16, 3666–3669, (2010)

F. Würthner, K. Meerholz, Systems Chemistry Approach in Organic Photovoltaic, Chem. Eur. J. 16, 9366–9373, (2010)

N. M. Kronenberg, V. Steinmann, H. Bürckstümmer, J. Hwang, D. Hertel, F. Würthner, K. Meerholz, Direct Comparison of Highly Efficient Solution- and Vacuum-Processed Organic Solar Cells Based on Merocyanine Dyes, Adv. Mater. 22, 4193–4197, (2010)


Projekt:14

Controlled supramolecular and nanoscale morphologies for organic solar cells.

Hesse, H. C.; Weickert, J.; Al-Hussein, M.; Dossel, L.; Feng, X. L.; Mullen, K.; Schmidt-Mende, L., Discotic materials for organic solar cells: Effects of chemical structure on assembly and performance. Solar Energy Materials and Solar Cells 2010, 94 (3), 560-567;

Musselman, K. P.; Wisnet, A.; Iza, D. C.; Hesse, H. C.; Scheu, C.; MacManus-Driscoll, J. L.; Schmidt-Mende, L., Strong Efficiency Improvements in Ultra-low-Cost Inorganic Nanowire Solar Cells. Advanced Materials 2010, 22 (35), E254-+;

Weickert, J.; Sun, H. Y.; Palumbiny, C.; Hesse, H. C.; Schmidt-Mende, L., Spray-deposited PEDOT:PSS for inverted organic solar cells. Solar Energy Materials and Solar Cells 2010, 94 (12), 2371-2374;

Pang, S. P.; Englert, J. M.; Tsao, H. N.; Hernandez, Y.; Hirsch, A.; Feng, X. L.; Mullen, K., Extrinsic Corrugation-Assisted Mechanical Exfoliation of Monolayer Graphene. Advanced Materials 2010, 22, (47), 5374.

Zilberman, Y.; Tisch, U.; Shuster, G.; Pisula, W.; Feng, X. L.; Mullen, K.; Hoick, H., Carbon Nanotube/Hexa-peri-hexabenzocoronene Bilayers for Discrimination Between Nonpolar Volatile Organic Compounds of Cancer and Humid Atmospheres. Advanced Materials 2010, 22, (38), 4317.

Pisula, W.; Feng, X. A.; Mullen, K., Tuning the Columnar Organization of Discotic Polycyclic Aromatic Hydrocarbons. Advanced Materials 2010, 22, (33), 3634-3649.

Cai, J. M.; Ruffieux, P.; Jaafar, R.; Bieri, M.; Braun, T.; Blankenburg, S.; Muoth, M.; Seitsonen, A. P.; Saleh, M.; Feng, X. L.; Mullen, K.; Fasel, R., Atomically precise bottom-up fabrication of graphene nanoribbons. Nature 2010, 466, (7305), 470-473.

Yang, S. B.; Feng, X. L.; Zhi, L. J.; Cao, Q. A.; Maier, J.; Mullen, K., Nanographene-Constructed Hollow Carbon Spheres and Their Favorable Electroactivity with Respect to Lithium Storage. Advanced Materials 2010, 22, (7), 838.

Weber, C. M.; Eisele, D. M.; Rabe, J. P.; Liang, Y. Y.; Feng, X. L.; Zhi, L. J.; Mullen, K.; Lyon, J. L.; Williams, R.; Bout, D. A. V.; Stevenson, K. J., Graphene-Based Optically Transparent Electrodes for Spectroelectrochemistry in the UV-Vis Region. Small 2010, 6, (2), 184-189.

Yang, S. B.; Feng, X. L.; Wang, L.; Tang, K.; Maier, J.; Mullen, K., Graphene-Based Nanosheets with a Sandwich Structure. Angewandte Chemie-International Edition 2010, 49, (28), 4795-4799.

Yang, S. B.; Feng, X. L.; Ivanovici, S.; Mullen, K., Fabrication of Graphene-Encapsulated Oxide Nanoparticles: Towards High-Performance Anode Materials for Lithium Storage. Angewandte Chemie-International Edition 2010, 49, (45), 8408-8411.

Su, Q.; Liang, Y. Y.; Feng, X. L.; Mullen, K., Towards free-standing graphene/carbon nanotube composite films via acetylene-assisted thermolysis of organocobalt functionalized graphene sheets. Chemical Communications 2010, 46, (43), 8279-8281.

Schwab, M. G.; Hamburger, M.; Feng, X. L.; Shu, J.; Spiess, H. W.; Wang, X. C.; Antonietti, M.; Mullen, K., Photocatalytic hydrogen evolution through fully conjugated poly(azomethine) networks. Chemical Communications 2010, 46, (47), 8932-8934.

Yang, S. B.; Cui, G. L.; Pang, S. P.; Cao, Q.; Kolb, U.; Feng, X. L.; Maier, J.; Mullen, K., Fabrication of Cobalt and Cobalt Oxide/Graphene Composites: Towards High-Performance Anode Materials for Lithium Ion Batteries. ChemSusChem 2010, 3, (2), 236-239.


Projekt:15

All-polymer solar cells based on thiophene-Based copolymers.

R. Steyrleuthner , M. Schubert , F. Jaiser , J. C. Blakesley , Z. Chen , A. Facchetti , D.Neher, Bulk Electron Transport and Charge Injection in a High Mobility n-Type Semiconducting Polymer, Adv. Mater. 2010, XX, 1–5, DOI: 10.1002/adma.201000232

S. Bange, M. Schubert, D. Neher, Charge mobility determination by current extraction under linear increasing voltages: Case of nonequilibrium charges and field-dependent mobilities, PHYSICAL REVIEW B 81, 035209 (2010), DOI: 10.1103/PhysRevB.81.035209

S. Inal, M.Schubert, A. Sellinger, D. Neher, The Relationship between the Electric Field-Induced
Dissociation of Charge Transfer Excitons and the Photocurrent in Small Molecular/Polymeric Solar Cells, J. Phys. Chem. Lett. 2010, 1, 982–986, DOI: 10.1021/jz100121t

M. Schubert, R. Steyrleuthner, S. Bange, A. Sellinger, D. Neher, Charge transport and recombination
in bulk heterojunction solar cells containing a dicyanoimidazole-based molecular acceptor, Phys. Status Solidi A 206, No. 12, 2743–2749 (2009) / DOI 10.1002/pssa.200925312


Projekt 16:

Photogeneration, recombination and extraction of charge carriers in organic solar cells.

B. Baumeier, J. Kirkpatrick, D. Andrienko, Density-functional based determination of intermolecular charge 
transfer properties for large-scale morphologies, Phys. Chem. Chem. Phys., 12, 11103-11113, (2010)

T. Vehoff, Y. S. Chung, K. Johnston, A. Troisi, D. Y. Yoon, D. Andrienko, Charge transport in self-assembled
semiconducting organic layers: role of dynamic and static disorder, J. Phys. Chem. C, 114, 10592-10597, (2010)
V. Ruehle, J. Kirkpatrick, D. Andrienko,   A multiscale description of charge transport in conjugated oligomers,
J. Chem. Phys., 132, 134103, (2010)

T. Vehoff, B. Baumeier, A. Troisi, D. Andrienko, Charge transport in organic crystals: role of disorder and
topological connectivity, J. Am. Chem. Soc., 132, 11702-11708, (2010)

M. Tasinkevych, D. Andrienko, Colloidal particles in liquid crystal films and at interfaces,
Cond. Mat. Phys., 13, 33603, (2010)

A. Lukyanov, D. Andrienko, Extracting nondispersive charge carrier mobilities of organic semiconductors from
simulations of small systems, Phys. Rev. B, 82, 193202, (2010)

A. Lukyanov, A. Malafeev, V. Ivanov, H.-L. Chen, K. Kremer, D. Andrienko, Solvated poly-(phenylene vinylene)
derivatives: conformational structure and aggregation behavior, J. Mater. Chem, 20, 10475-10485, (2010)

T. Vehoff, B. Baumeier, D. Andrienko, Charge transport in columnar mesophases of carbazole macrocycles,
J. Chem. Phys., 133, 134901, (2010)

T. Strobel, C. Deibel, V. Dyakonov, Role of polaron pair diffusion and surface losses in organic semiconductor devices,  Phys. Rev. Lett. 105, 266602 (2010)


Projekt 20:

Control of the nanoscale morphology of bulk heterojunction solar cells via chemical assembly of conjugated polymers on nanoparticle support.

Krebs, F. C.; Senkovskyy, V. C.; Kiriy, A. Preorganization of Nanostructured Inks for Roll-to-Roll-Coated Polymer 
Solar Cells. IEEE J. Sel. Top. Quant. El. 6, 1821-1826, (2010)



2009


Projekt: 1

Polymeric solar cells with improved properties are fabricated and investigated. The film formation, morphology and optoelectronic properties are studied.

H. Do, M. Reinhard, H. Vogeler, A. Pütz, M. F. G. Klein, W. Schabel, A. Colsmann, U. Lemmer, "Polymeric anodes from PEDOT:PSS for 3.5% efficient organic solar cells“, Thin Solid Films 517, 5900 (2009).

A. Colsmann, F. Stenzel, G. Balthasar, H. Do, U. Lemmer, "Plasma patterning of PEDOT:PSS anodes for efficient polymer solar cells“, Thin Solid Films (2009) 517, 1750-1752.

B. Schmidt-Hansberg, H. Do, A. Colsmann, U. Lemmer, W. Schabel, "Drying of thin film polymer solar cells", European Physical Journal Special Topics (2009) 166, 49-53.

N. Christ, S. Kettlitz, S. Valouch, S. Züfle, C. Gärtner, M. Punke, U. Lemmer, "Nanosecond response of organic solar cells and photodetectors " J. Appl. Phys. 105, 104513 (2009).

B. Schmidt-Hansberg, M.F.G. Klein, K. Peters, F. Buss, J. Pfeifer, S. Walheim, A. Colsmann, U. Lemmer, P. Scharfer, W. Schabel, "In situ monitoring the drying kinetics of knife coated polymer-fullerene films for organic solar cells" J. Appl. Phys. 106, 124501 (2009).


Projekt: 2

An integrated approach towards highly efficient bulk-heterojunction solar cell
based on dendritic oligothiophenes - From synthesis to device abrication to characterization and stochastic model-based simulation.

M. K. R. Fischer, I. López-Duarte, M. M. Wienk, M. V. Martínez-Díaz, R. A. J. Janssen, P. Bäuerle, T. Torres, Functionalized Dendritic Oligothiophenes: Ruthenium Phthalocyanine Complexes and Their Application in Bulk Heterojunction Solar Cells, J. Am. Chem. Soc. 131, 8669-8676, (2009)

M. K. R. Fischer, T. E. Kaiser, F. Würthner, P. Bäuerle, Dendritic oligothiophene­perylene bisimide hybrids: synthesis, optical and electrochemical properties, J. Mater. Chem. (2009), 19, 1129-1141.

S. D. Oosterhout, M. M. Wienk, S. S. van Bavel, R. Thiedmann, L. J. A. Koster, J. Gilot, J. Loos, V. Schmidt, and R. A. J. Janssen, The effect of three-dimensional morphology on the efficiency of hybrid polymer solar cells, Nat. Mater. (2009), 8, 818-824

A. Mishra, C.-Q. Ma, R. A. J. Janssen, P. Bäuerle, Shape-Persistent Oligothienylene­-Ethynylene-­based Dendrimers: Synthesis, Spectroscopy and Electrochemical Characterization, Chem. Eur. J. (2009), 15, 13521-13534.


Projekt: 4

Charge separation at nanostructured molecular donor-acceptor interfaces

A. Opitz, J. Wagner, W. Brütting, A. Hinderhofer, F. Schreiber; Molecular semiconductor blends: microstructure, charge carrier transport and application in photovoltaic cells; phys. stat. sol. (a) 206 (2009) 2683–2694.


A. Opitz, B. Ecker, J. Wagner, A. Hinderhofer, F. Schreiber, J. Manara, J. Pflaum, W. Brütting; Mixed crystalline films of co-evaporated hydrogen- and fluorine-terminated phthalocyanines and their application in photovoltaic devices; Org. Electron. 10 (2009) 1259–1267.


A. Opitz, J. Wagner, B. Ecker, U. Hörmann, M. Kraus, M. Bronner, W. Brütting, A. Hinderhofer, F. Schreiber; Microstructure and charge carrier transport in phthalocyanine based semiconductor blends; MRS Proc. 1154 (2009) 1154-B09-12.



Projekt: 6

Low bandgap dendrimer sytems: Synthesis, spectroscopy and microscopy of composite films for photovoltaics.

Charge transfer excitons in polymer/fullerene blends: the role of morphology and polymer chain conformation.
M. Hallermann, I. Kriegel, E. Da Como, J.M. Berger, E. von Hauff, J. Feldmann, Adv. Funct. Mater. (in press)


Projekt: 7
Interplay between microscopic structure and  intermolecular charge transfer processes  in polymer-fullerene bulk-heterojunctions.

J. Delgado, E. Espíldora, M. Liedtke, A. Sperlich, D. Rauh, A. Baumann, C. Deibel, V. Dyakonov, and N. Martin, Fullerene Dimers (C60/C70) for Energy Harvesting, Chem. Eur. J. 15, 13474 (2009).


Projekt: 8

Influence of π−π stacking distance in low-band-gap PPE-PPV polymers on the morphology and performance of polymer-fullerene solar cells.

R. Jadhav, S. Türk, F. Kühnlenz, V. Cimrova, N.S. Sariciftci, S. Rathgeber, D.A.M. Egbe, H. Hoppe;Phys. Stat. Sol. A 206, 2695 (2009): “Anthracene-Containing PPE-PPV Copolymers: Effect of Side-Chain Nature and Length on Photophysical and Photovoltaic Properties“, Phys. Status Solidi A 2009, 12, 2695-.2699.

Egbe, D. A. M.; Carbonnier, B.; Birckner, E.; Grummt: Arylene-Ethynylene/Arylene-Vinylene Copolymers: Synthesis and Structure-Property Relationships, U.-W. Prog. Polym. Sci. 2009, 34, 1023-1067.


Projekt: 10

Organic solar cells from optimized self-assembling block copolymers with controlled nanoscale morphology.

R. H. Lohwasser, J. Bandara and M. Thelakkat, "Taylor-made synthesis of poly(3-hexythiophene) with carboxylic end groups and its application as a polymer sensitizer in solid-states dye-sensitized solar cells", J. Mater. Chem. (2009) 19, 4126 – 4130

S. Hüttner, M. Sommer, A. Chiche, G. Krausch. U. Steiner and M. Thelakkat, "Controlled solvent vapour annealing for polymer electronics", Soft Matter (2009) 5, 4206–4211

M. Sommer, S. Hüttner, U. Steiner, and M. Thelakkat, Influence of molecular weight on the solar cell performance of double-crystalline donor-acceptor block copolymers, Appl. Phys. Lett. 95, 183308(1-3) (2009).


Projekt: 13

Bulk heterojunction photovoltaic cells based on merocyanine dye supramolecular polymers.

U. Mayerhöffer, K. Deing, K. Gruß, H. Braunschweig, K. Meerholz, F. Würthner, Outstanding Short-Circuit Currents in BHJ Solar Cells Based on NIR-Absorbing Acceptor-Substituted Squaraines, Angew. Chem. 121, 8934–8937; Angew. Chem. Int. Ed. 2009, 48, 8776–8779, (2009)


2008


Projekt: 1
Polymeric solar cells with improved properties are fabricated and investigated. The film formation, morphology and optoelectronic properties are studied.

H. Wettach, F. Pasker, S. Höger, "2-Aryl-2H-benzotriazoles as Building Blocks for New Low-Bandgap Poly(arylene-ethynylene)s", Macromolecules (2008) 41, 9513-9515.

E. Ahlswede, W. Mühleisen, M. W. b. M. Wahi, J. Hanisch, M. Powalla , "Highly efficient organic solar cells with printable low-cost transparent contacts“, Applied Physics Letters (2008) 92, 143307.


Projekt: 2

An integrated approach towards highly efficient bulk-heterojunction solar cell
based on dendritic oligothiophenes - From synthesis to device abrication to characterization and stochastic model-based simulation.

C.-Q. Ma, M. Fonrodona, M. C. Schikora, M. M. Wienk, R. A. J. Janssen, P. Bäuerle, Solution-Processed Bulk-Heterojunction Solar Cells Based on Monodisperse Dendritic Oligothiophenes, Adv. Funct. Mater. (2008), 18, 3323-3331.


Projekt: 4

Charge separation at nanostructured molecular donor-acceptor interfaces

Ambipolar organic semiconductor blends for photovoltaic cells.
A. Opitz, M. Bronner, J. Wagner, M. Götzenbrugger, W. Brütting. SPIE Proc. 7002 (2008): 70020J

Ambipolar blends of CuPC and C60: charge carrier mobility, electronic structure and its implications for solar cells applications.
W. Brütting, M. Bronner, M. Götzenbrugger, A. Opitz, Macromol. Symp. 268 (2008): 38-42


Projekt: 6

Low bandgap dendrimer sytems: Synthesis, spectroscopy and microscopy of composite films for photovoltaics.

Charge-transfer states in conjugated polymer/fullerene blends: Below-gap weakly bound excitons for polymer photovoltaics.
M. Hallermann, S. Haneder, E. Da Como, Appl. Phys. Lett. 93, 053307 (2008)


Projekt: 13

Bulk heterojunction photovoltaic cells based on merocyanine dye supramolecular polymers.

N. M. Kronenberg, M. Deppisch, F. Würthner, H. W. A. Lademann, K. Deing, K. Meerholz, Bulk heterojunction organic solar cells based on merocyanine colorants, Chem. Commun., 6489–6491, 2008