The Characterization of Dye-sensitized Solar Cell with Photoelectrode Modified by TiO_2/GO/Ag Nanofibers at Low Light Intensity

Yu-Hsun Nien ； Huang-Hua Chen ； Zhen-Rong Yong ； Hui-Hsuan Hsu ； Manjunath Rangasamy ； Geng-Ming Hu ； Po-Yu Kuo ； Jung-Chuan Chou ； Chih-Hsien Lai ； Cheng-Chu Ko ； Jun-Xiang Chang

《Journal of Innovative Technology》 3卷1期 (2021/03) Pp. 23-26

https://doi.org/10.29424/JIT.202103_3(1).0004

摘要

Titanium dioxide (TiO_2) nanofibers (NF) including graphene oxide (GO) and silver (Ag) nanoparticles (NPs) were prepared using the sol-gel method and electrospin technique. The photovoltaic conversion efficiency (η) of the modified dye-sensitized solar cell (DSSC) with TiO_2/GO/Ag nanofibers on the photoelectrode was measured under various low light intensities. The incorporation of GO and Ag nanoparticles led to rapid electron transport and a reduced incidence of electron recombination. The synthesized TiO_2/GO/Ag nanofibers had a large specific surface area and high porosity that promoted dye absorption at the photoanode. The η of the TGAP modified photoelectrode was 34% higher than that of a standard DSSC photoelectrode. This study showed that the highest η for the TGAP modified photoelectrode was 6.56% which occurred at 30 mW/cm^2, this was attributed to the decreased electron recombination under those low light conditions.

關鍵字

Dye-sensitized Solar Cell (DSSC) ； Electrospinning ； Nanofiber ； Low Illumination

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