Efficient hydrogen evolution on (CuInS2)x(ZnS)1−x solid solution-based photocathodes under simulated sunlight

Jiao Zhao; Tsutomu Minegishi; Hiroyuki Kaneko; Guijun Ma; Miao Zhong; Mamiko Nakabayashi; Takashi Hisatomi; Masao Katayama; Naoya Shibata; Taro Yamada; Kazunari Domen

doi:10.1039/C8CC08623K

Efficient hydrogen evolution on (CuInS₂)_x(ZnS)_1−x solid solution-based photocathodes under simulated sunlight†

Jiao Zhao,‡^a Tsutomu Minegishi,

^a Hiroyuki Kaneko,

^a Guijun Ma,

^a Miao Zhong,^a Mamiko Nakabayashi,^b Takashi Hisatomi,

§^a Masao Katayama,^a Naoya Shibata,^b Taro Yamada^a and Kazunari Domen

*^ac

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* Corresponding authors

^a Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
E-mail: domen@chemsys.t.u-tokyo.ac.jp

^b Institute of Engineering Innovation, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan

^c Center for Energy & Environmental Science, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan

Abstract

A thin film of (CuInS₂)_x(ZnS)_1−x has been developed as a photocathode for solar water splitting for the first time. A superior photoelectrochemical performance has been achieved, mainly attributed to the formation of a solid solution by CuInS₂ and ZnS, which proved to be an effective strategy to improve the onset potential and efficiency of CuInS₂ photocathodes.

Chemical Communications

Efficient hydrogen evolution on (CuInS₂)_x(ZnS)_1−x solid solution-based photocathodes under simulated sunlight†

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Efficient hydrogen evolution on (CuInS₂)_x(ZnS)_1−x solid solution-based photocathodes under simulated sunlight

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