Design of a New Fused-Ring Electron Acceptor with Excellent Compatibility to Wide-Bandgap Polymer Donors for High-Performance Organic Photovoltaics
| Autor: | Wenrui Liu, Shengjie Xu, Xiaozhang Zhu, Yuan Zhang, Zichun Zhou, Jianyun Zhang, Dongyang Zhang |
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| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Materials science Organic solar cell Band gap Mechanical Engineering Energy conversion efficiency Nanotechnology 02 engineering and technology Polymer Electron acceptor 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Mechanics of Materials Compatibility (mechanics) General Materials Science 0210 nano-technology Malononitrile |
| Zdroj: | Advanced Materials. 30:1800403 |
| ISSN: | 0935-9648 |
| Popis: | Fused-ring electron acceptors (FREAs) have recently received intensive attention. Besides the continuing development of new FREAs, the demand for FREAs featuring good compatibility to donor materials is becoming more and more urgent, which is highly desirable for screening donor materials and achieving new breakthroughs. In this work, a new FREA is developed, ZITI, featuring an octacyclic dithienocyclopentaindenoindene central core. The core is designed by linking 2,7-dithienyl substituents and indenoindene with small methylene groups, in which the indeno[1,2-b]thiophene-2-(3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile part provides a large and unoccupied π-surface. Most notably, ZITI possesses an excellent compatibility with commercially available polymer donors, delivering very high power conversion efficiencies of over 13%. |
| Databáze: | OpenAIRE |
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