title: Enhancement of solar hydrogen evolution from water by surface modification with CdS and TiO2 on porous CuInS2 photocathodes prepared by an electrodeposition-sulfurization method.
abstract: Porous films of p-type CuInS2, prepared by sulfurization of electrodeposited metals, are surface-modified with thin layers of CdS and TiO2. This specific porous electrode evolved H2 from photoelectrochemical water reduction under simulated sunlight. Modification with thin n-type CdS and TiO2 layers significantly increased the cathodic photocurrent and onset potential through the formation of a p-n junction on the surface. The modified photocathodes showed a relatively high efficiency and stable H2 production under the present reaction conditions.
authors.affiliation: Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8589 (Japan); State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China).
authors.forename: Jiao
authors.initials: J
authors.lastname: Zhao
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Minegishi
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.forename: Miao
authors.initials: M
authors.lastname: Zhong
authors.lastname: Gunawan
authors.forename: Mamiko
authors.initials: M
authors.lastname: Nakabayashi
authors.forename: Guijun
authors.initials: G
authors.lastname: Ma
authors.forename: Takashi
authors.initials: T
authors.lastname: Hisatomi
authors.forename: Masao
authors.initials: M
authors.lastname: Katayama
authors.forename: Shigeru
authors.initials: S
authors.lastname: Ikeda
authors.forename: Naoya
authors.initials: N
authors.lastname: Shibata
authors.forename: Taro
authors.initials: T
authors.lastname: Yamada
authors.forename: Kazunari
authors.initials: K
authors.lastname: Domen
keywords: I-III-VI2 chalcopyrites; electrodeposition; hydrogen production; photocathodes; photoelectrochemistry