Direct connection of an amine to oligothiophene to generate push-pull chromophores for organic photovoltaic applications
| Autor: | Ante Bilic, Amanpreet Kaur Hundal, Anubha Agarwal, Wanchun Xiang, Richard A. Evans, Jingliang Li, Akhil Gupta, Jingyu Chen, Sheshanath V. Bhosale |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Process Chemistry and Technology General Chemical Engineering Photovoltaic system Energy conversion efficiency 02 engineering and technology Chromophore 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences 7. Clean energy Acceptor Polymer solar cell 0104 chemical sciences Connection (mathematics) Amine gas treating 0210 nano-technology Push pull |
| Zdroj: | Dyes and Pigments. 162:315-323 |
| ISSN: | 0143-7208 |
| Popis: | Through the direct connection of the donor nitrogen atom to oligothiophenes, herein we report three novel, donor materials for evaluation in bulk-heterojunction solar cells. The direct substitution enhances the charge transfer transition, thus improving the light-harvesting ability of the target chromophores. The influence of various terminal acceptor functionalities on the optoelectronic and photovoltaic properties was systematically studied. The target chromophore, T3, bearing oxoindenemalononitrile acceptor unit afforded a power conversion efficiency of 6.12% when paired with the conventional acceptor, PC61BM, a result that is the highest in the current literature for push-pull chromophores . |
| Databáze: | OpenAIRE |
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