Black Phosphorus Based Photocathodes in Wideband Bifacial Dye-Sensitized Solar Cells.

Yang, Ying; Gao, Jing; Zhang, Zheng; Xiao, Si; Xie, Han-Han; Sun, Zheng-Bo; Wang, Jia-Hong; Zhou, Cong-Hua et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

Ultrasmall black phosphorus quantum dots (BPQDs) serve as the near-infrared light absorber and charge transfer layer in the photocathode of a bifacial n-type dye sensitized solar cell. Wideband light absorption and ≈20% enhancement in the light-to-electron efficiency are accomplished due to the fast carrier transfer and complementary light absorption by the BPQDs demonstrating that BP has large potential in photovoltaics.