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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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Rath, Thomas
Graz University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Silicon and Germanium Functionalized Perylene Diimides – Synthesis, Optoelectronic Properties, and their Application as Non-Fullerene Acceptors in Organic Solar Cellscitations
- 2023Solution-Processable Cu3BiS3 Thin Films: Growth Process Insights and Increased Charge Generation Properties by Interface Modificationcitations
- 2023The challenge with high permittivity acceptors in organic solar cells: a case study with Y-series derivativescitations
- 2023Bio-Polyester/Rubber Compounds: Fabrication, Characterization, and Biodegradationcitations
- 2023Low-cost and automated phenotyping system “Phenomenon” for multi-sensor in situ monitoring in plant in vitro culturecitations
- 2022Glycol bearing perylene monoimide based non-fullerene acceptors with increased dielectric permittivitycitations
- 2020Cellulose metal sulfide based nanocomposite thin films
- 2020Synthesis and characterization of zinc di(O-2,2-dimethylpentan-3-yl dithiocarbonates) bearing pyridine or tetramethylethylenediamine coligands and investigation of their thermal conversion mechanisms towards nanocrystalline zinc sulfidecitations
- 2019Multi-layered nanoscale cellulose/CuInS2 sandwich type thin filmscitations
- 2019Modification of NiOx hole transport layers with 4-bromobenzylphosphonic acid and its influence on the performance of lead halide perovskite solar cellscitations
- 2017Progress on lead-free metal halide perovskites for photovoltaic applications: a reviewcitations
- 2016Solution-Processed Bismuth(III)-Based Halide Perovskites as Absorber Materials for Photovoltaic Applications
- 2016Influence of Polymer Phase, Polymer/Nanoparticle Ratio and Organic Additives on the Performance of Hybrid Solar Cells
- 2013Bismuth sulphide–polymer nanocomposites from a highly soluble bismuth xanthate precursorcitations
- 2012Comprehensive Investigation of Silver Nanoparticle/Aluminum Electrodes for Copper Indium Sulfide/Polymer Hybrid Solar Cellscitations
Places of action
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article
Silicon and Germanium Functionalized Perylene Diimides – Synthesis, Optoelectronic Properties, and their Application as Non-Fullerene Acceptors in Organic Solar Cells
Abstract
Organic solar cells have been continuously studied and developed through the last decades. A major step in their development was the introduction of fused-ring non-fullerene electron acceptors. Yet, beside their high efficiency, they suffer from complex synthesis and stability issues. Perylene-based non-fullerene acceptors, in contrast, can be prepared in only a few steps and display good photochemical and thermal stability. Herein, we introduce four monomeric perylene diimide acceptors obtained in a three-step synthesis. In these molecules, the semimetals silicon and germanium were added in the bay position, on one or both sides of the molecules, resulting in asymmetric and symmetric compounds with a red-shifted absorption compared to unsubstituted perylene diimide. Introducing two germanium atoms improved the crystallinity and charge carrier mobility in the blend with the conjugated polymer PM6. In addition, charge carrier separation is significantly influenced by the high crystallinity of this blend, as shown by transient absorption spectroscopy. As a result, the solar cells reached a power conversion efficiency of 5.38 %, which is one of the highest efficiencies of monomeric perylene diimide-based solar cells recorded to date.