| 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
ITO-free inverted polymer/fullerene solar cells: Interface effects and comparison of different semi-transparent front contacts
Abstract
Polymer/fullerene solar cells with an inverted layer sequence and free from indium tin oxide (ITO) are presented in this study. We concentrate on critical interface effects in inverted devices and compare different semi-transparent front contacts, such as ultra-thin Au films and Au grid structures. The solvent of the absorber blend was found to have a distinct impact on the stability of the initially deposited cathode layer. Furthermore, we did wettability studies of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) on the active layer and determined the surface energy of polymer/fullerene blends. Ultra-thin Au films with varying thickness were investigated in terms of sheet resistance and transmittance. The optimal thickness was achieved via simulation of organic solar cells. Finally, we present a comparison of inverted solar cells with an active area of about 1 cm2 both with Au films and Au grid structures as front contact in terms of photovoltaic performance, reproducibility, and degradation. Notably better results were achieved when using Au grid structures as front contact, even with a not optimized grid geometry.