Enhancing the Performance of Amorphous-Silicon Photoanodes for Photoelectrocatalytic Water Oxidation

被引：17

作者：

Qin, Wei ^{[1
,2
,3
]}

Wang, Nan ^{[1
,2
,3
]}

Yao, Tingting ^{[1
,2
,3
]}

Wang, Shubo ^{[2
]}

Wang, Hui ^{[2
]}

Cao, Yuexian ^{[2
]}

Liu, Shengzhong ^{[2
]}

Li, Can ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

[2] Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

[3] Univ Chinese Acad Sci, Beijing, Peoples R China

来源：

CHEMSUSCHEM | 2015年 / 8卷 / 23期

关键词：

cobalt oxide; electrochemistry; amorphous silicon; photochemistry; water splitting; THIN-FILM SILICON; A-SI-H; HYDROGEN-PRODUCTION; PHOTOELECTROCHEMICAL CELLS; LAYER; TIO2; EFFICIENCY; DEVICES; SURFACE; EARTH;

D O I：

10.1002/cssc.201501004

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein, hydrogenated amorphous Si (a-Si:H) covered with a thin layer of CoOx is applied as photoanode for PEC water splitting. The thin layer of CoOx effectively protects a-Si:H from the corrosive electrolyte and quantitative oxidation of water to oxygen was observed. A high applied bias photon-to-current efficiency of 2.34% was achieved using an intrinsic absorber and an additional p-type layer. This work shows that a-Si:H with a sandwich-like structure, in which each layer has its own functionality, can be applied as an efficient and stable photoanode for PEC water oxidation.

引用

页码：3987 / 3991

页数：5

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