A Novel Photocathode Material for Sunlight-Driven Overall Water Splitting: Solid Solution of ZnSe and Cu(In,Ga)Se2

被引：106

作者：

Kaneko, Hiroyuki ^{[1
]}

Minegishi, Tsutomu ^{[1
,2
]}

Nakabayashi, Mamiko ^{[1
,3
]}

Shibata, Naoya ^{[3
]}

Kuang, Yongbo ^{[1
,4
]}

Yamada, Taro ^{[4
]}

Domen, Kazunari ^{[1
]}

机构：

[1] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

[2] JST, PRESTO, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

[3] Univ Tokyo, Inst Engn Innovat, Bunkyo Ku, 2-11-16 Yayoi, Tokyo 1138656, Japan

[4] Univ Tokyo, Dept Chem Syst Engn, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778589, Japan

来源：

ADVANCED FUNCTIONAL MATERIALS | 2016年 / 26卷 / 25期

基金：

日本学术振兴会; 日本科学技术振兴机构;

关键词：

chalcopyrites; hydrogen; photocathodes; photoelectrochemistry; water splitting; HYDROGEN EVOLUTION; EFFICIENT SOLAR; THIN-FILM; SURFACE MODIFICATION; BIVO4; PHOTOANODES; PARTICLE TRANSFER; VISIBLE-LIGHT; OXYGEN; CDS; PHOTOELECTRODES;

D O I：

10.1002/adfm.201600615

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Thin films of a solid solution of ZnSe and CuIn0.7Ga0.3Se2 ((ZnSe) (x) (CIGS) (1-x) ) are prepared by co-evaporation. Structural characterization reveals that the ZnSe and CIGS form a solid solution with no phase separation. (ZnSe)(0.85)(CIGS)(0.15)-based photocathodes modified with Pt, Mo, Ti, and CdS exhibit a photocurrent of 7.1 mA cm(-2) at 0 V-RHE, and a relatively high onset potential of 0.89 V-RHE under simulated sunlight. A two-electrode cell containing a (ZnSe)(0.85)(CIGS)(0.15) photocathode and a BiVO4-based photoanode has an initial solar-to-hydrogen conversion efficiency of 0.91%, which is one of the highest values reported for a photoanode-photocathode combination. Thus, (ZnSe)(0.85)(CIGS)(0.15) is a promising photocathode material for efficient photoelectrochemical water splitting.

引用

页码：4570 / 4577

页数：8

共 49 条

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