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Theoretical Study on Photoelectric Characteristic of A-π-D-π-A Indole-based Dye Sensitizers |
LU Xiaoqing( ),ZHANG Quande,WEI Shuxian |
China University of Petroleum, Qingdao 266580, China |
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Cite this article:
LU Xiaoqing,ZHANG Quande,WEI Shuxian. Theoretical Study on Photoelectric Characteristic of A-π-D-π-A Indole-based Dye Sensitizers. Chinese Journal of Materials Research, 2020, 34(1): 50-56.
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Abstract Based on the concept of modification of molecular skeleton structure, a series of (acceptor-π-donor-π-acceptor) A-π-D-π-A type indole-based metal-free organic dye sensitizers were designed, and their photoelectric conversion behavior and the relevant electronic transmission mechanisms were theoretically investigated by using density functional theory and the time-dependent density functional theory. Results show that compared with the traditional D-π-A molecular skeleton structure the overall performance of A-π-D-π-A type indole-based organic dye sensitizers was significantly improved in terms of the appropriate energy level structure and orbital electron distribution, broadened spectral absorption coverage range, improved light-harvesting efficiency and enhanced IET performance. At the same time, it should be noted that the enhancement of electron-deficient properties of the π-bridge could further enhance the properties of A-π-D-π-A type indole-based metal-free organic dye sensitizers.
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Received: 10 June 2019
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Fund: Natural Science Foundation of Shandong Province(ZR2017MA024);Natural Science Foundation of Shandong Province(ZR2019MEM005);Fundamental Research Funds for the Central Universities(18CX02042A);Fundamental Research Funds for the Central Universities(18CX07002A);Fundamental Research Funds for the Central Universities(18CX05011A);Postgraduate’s Innovation Project(YCX-2019092) |
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