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

Ying Yang; Jing Gao; Zheng Zhang; Si Xiao; Han-Han Xie; Zheng-Bo Sun; Jia-Hong Wang; Cong-Hua Zhou; Ying-Wei Wang; Xue-Yi Guo; Paul K Chu; Xue-Feng Yu

doi:10.1002/adma.201602382

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

Adv Mater. 2016 Oct;28(40):8937-8944. doi: 10.1002/adma.201602382. Epub 2016 Aug 25.

Authors

Ying Yang¹, Jing Gao¹, Zheng Zhang¹, Si Xiao², Han-Han Xie³, Zheng-Bo Sun³, Jia-Hong Wang³, Cong-Hua Zhou⁴, Ying-Wei Wang⁴, Xue-Yi Guo⁵, Paul K Chu⁶, Xue-Feng Yu⁷

Affiliations

¹ School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
² Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha, 410083, P. R. China. sixiao@csu.edu.cn.
³ Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.
⁴ Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha, 410083, P. R. China.
⁵ School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China. xyguo@csu.edu.cn.
⁶ Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
⁷ Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China. xf.yu@siat.ac.cn.

PMID: 27561078
DOI: 10.1002/adma.201602382

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.

Keywords: black phosphorus; dye-sensitized solar cells; photocathodes; wideband light absorption.