Extended photo-absorption properties of novel push-pull diphenylpyranylidene molecules and their photovoltaic performance

Jiapeng Ren; Wenting Tian; Altan Bolag; Bao Tana; Jun Ning; Hexig Alata; Ojiyed Tegus

doi:10.1117/12.2628494

16 February 2022 Extended photo-absorption properties of novel push-pull diphenylpyranylidene molecules and their photovoltaic performance

Jiapeng Ren, Wenting Tian, Altan Bolag, Bao Tana, Jun Ning, Hexig Alata, Ojiyed Tegus

Author Affiliations +

Proceedings Volume 12164, International Conference on Optoelectronic Materials and Devices (ICOMD 2021); 1216410 (2022) https://doi.org/10.1117/12.2628494
Event: 2021 International Conference on Optoelectronic Materials and Devices, 2021, Guangzhou, China

Abstract

Two small molecules Y1 and Y2 with diphenylpyranylidene (DPP) as electron-donor and dicyanovinylene or 3- ethylrhodanine as electron-acceptor were designed, synthesized, characterized and applied to organic solar cells as active layer material. Y1 and Y2 showed a wide range of light absorption from 300 to 800 nm in solution and the maximum molar absorption coefficients were up to 30000 to 40000 M^-1cm^-1. Their optical absorption, electrochemical and photovoltaic properties were also studied. The prepared solar cells based on Y1 or Y2 donor and fullerene acceptor achieved PCE of 1.0% and 0.36%, respectively. The crystallization of Y1 and Y2 in blended active layer with fullerene materials as characterized with X-ray diffraction and atomic force microscope technology.

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Jiapeng Ren, Wenting Tian, Altan Bolag, Bao Tana, Jun Ning, Hexig Alata, and Ojiyed Tegus "Extended photo-absorption properties of novel push-pull diphenylpyranylidene molecules and their photovoltaic performance", Proc. SPIE 12164, International Conference on Optoelectronic Materials and Devices (ICOMD 2021), 1216410 (16 February 2022); https://doi.org/10.1117/12.2628494

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