| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Von Hauff, Elizabeth
Fraunhofer Society
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Volumetric 3D-Printed Piezoelectric Polymer Filmscitations
- 2021Correlating Ultrafast Dynamics, Liquid Crystalline Phases, and Ambipolar Transport in Fluorinated Benzothiadiazole Dyescitations
- 2021Correlating Ultrafast Dynamics, Liquid Crystalline Phases, and Ambipolar Transport in Fluorinated Benzothiadiazole Dyescitations
- 2019Air-stable and oriented mixed lead halide perovskite (FA/MA) by the one-step deposition method using Zinc Iodide and an Alkylammonium additivecitations
- 2019Relating Chain Conformation to the Density of States and Charge Transport in Conjugated Polymers:The Role of the β -phase in Poly(9,9-dioctylfluorene)citations
- 2019Air-Stable and Oriented Mixed Lead Halide Perovskite (FA/MA) by the One-Step Deposition Method Using Zinc Iodide and an Alkylammonium Additivecitations
- 2019Relating Chain Conformation to the Density of States and Charge Transport in Conjugated Polymers: The Role of the β -phase in Poly(9,9-dioctylfluorene)citations
- 2019Relating Chain Conformation to the Density of States and Charge Transport in Conjugated Polymerscitations
- 2018Extraordinary Interfacial Stitching between Single All-Inorganic Perovskite Nanocrystalscitations
- 2018Extraordinary Interfacial Stitching between Single All-Inorganic Perovskite Nanocrystalscitations
- 2016High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cellscitations
- 2016High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cellscitations
- 2015Imaging of morphological changes and phase segregation in doped polymeric semiconductorscitations
- 2015Imaging of morphological changes and phase segregation in doped polymeric semiconductorscitations
- 2013Silica Nanoparticles for Enhanced Carrier Transport in Polymer-Based Short Channel Transistorscitations
- 2013Silica Nanoparticles for Enhanced Carrier Transport in Polymer-Based Short Channel Transistorscitations
- 2013Thiophene-based copolymers synthesized by electropolymerization for application as hole transport layer in organic solar cellscitations
- 2013Interpreting the density of states extracted from organic solar cells using transient photocurrent measurementscitations
- 2012The Effect of Ageing on Exciton Dynamics, Charge Separation, and Recombination in P3HT/PCBM Photovoltaic Blendscitations
- 2012The Effect of Ageing on Exciton Dynamics, Charge Separation, and Recombination in P3HT/PCBM Photovoltaic Blendscitations
- 2012Influence of different copolymer sequences in low band gap polymers on their performance in organic solar cellscitations
- 2012ITO-free inverted polymer/fullerene solar cells: Interface effects and comparison of different semi-transparent front contactscitations
- 2012Influence of molecular weight on the short-channel effect in polymer-based field-effect transistorscitations
- 2011The Role of Molecular Structure and Conformation in Polymer Electronicscitations
- 2009Electrochemical Synthesis of Polypyrrole Layers Doped with Glutamic Ionscitations
- 2008Binding and release of glutamate from overoxidized polypyrrole via an applied potential for application as a molecular switchcitations
- 2005Diphenylmethanofullerenes: New and efficient acceptors in bulk-heterojunction solar cellscitations
Places of action
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article
Thiophene-based copolymers synthesized by electropolymerization for application as hole transport layer in organic solar cells
Abstract
Electrically conducting thiophene-based copolymers were synthesized by electropolymerization. The potential range used has a strong influence on the film structure and properties. The extent of oxidation of the copolymers was determined from the ratio of the oxidation to reduction charge, Qox/Qred. The use of wide potential range leads to reduced films, whereas the narrow range leads to partially oxidized films. The copolymers exhibit a characteristic band in UV–vis spectra at ∼ 410 nm, which shifts to higher wavelengths for the more doped material. The electrical conductivity of the copolymers was correlated to their morphology and their structure. The copolymer with higher conductivity is partially reduced, has compact morphology and higher ratio of quinoid to benzenoid rings. The energy gap of the copolymers is reversely proportional to their electrical conductivity. The optical and electrical properties of the copolymers make them very well suited for use as hole transport layers (HTL) in organic opto-electronic devices. We prepared polymer : fullerene solar cells with copolymer HTLs. The solar cell performance was tested with very encouraging initial results. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013.