Fine-tuning of electronic properties in donor–acceptor conjugated polymers based on oligothiophenes
| Autor: | Ichiro Imae, Yutaka Harima, Hitoshi Sagawa |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Physics and Astronomy (miscellaneous) General Engineering General Physics and Astronomy 02 engineering and technology Polymer Conjugated system 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry Photochemistry 01 natural sciences 0104 chemical sciences chemistry 0210 nano-technology Donor acceptor Absorption (electromagnetic radiation) Ethylenedioxy Electronic properties |
| Zdroj: | Japanese Journal of Applied Physics. 57:03EJ01 |
| ISSN: | 1347-4065 0021-4922 |
| Popis: | A novel series of donor–acceptor conjugated polymers having oligothiophenes with well-defined structures were synthesized and their optical, electrochemical, and photovoltaic properties were investigated. It was found that the absorption bands of polymers were red-shifted with increasing number of ethylenedioxy groups added to each oligothiophene unit and that their band edges reached over 1000 nm. The systematical fine-tuning of the electronic properties was achieved using the chemical structures of oligothiophene units. Photovoltaic cells based on polymer/(6,6)-phenyl C61 butyric acid methyl ester (PC61BM) exhibited power conversion efficiencies in the range from 0.004 to 1.10%, reflecting the electronic properties of the polymers. |
| Databáze: | OpenAIRE |
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