CdS quantum dots sensitized platelike WO3 photoelectrodes with a TiO2 buffer-layer

被引：24

作者：

Liu, Canjun ^{[1
]}

Li, Yaomin ^{[1
]}

Li, Wenzhang ^{[1
]}

Zhu, Jing ^{[1
]}

Li, Jie ^{[1
]}

Chen, Qiyuan ^{[1
]}

Yang, Yahui ^{[2
]}

机构：

[1] Cent S Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Resources Chem Nonferrous Met, Changsha 410083, Hunan, Peoples R China

[2] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 120卷

基金：

国家高技术研究发展计划(863计划);

关键词：

Platelike WO3; CdS QDs; Thin films; Water splitting; Solar energy materials; HYDROGEN GENERATION; PHOTOANODES; FILMS;

D O I：

10.1016/j.matlet.2014.01.053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High chemical stability of WO2 photoelectrode sensitized with CdS quantum dots (QDs) was reported for the first time using nano-TiO2 as a buffer layer, permitting their stable operation for photoelectrochemical water splitting in a strongly. alkaline electrolyte solution. The CdS QDs modification of the TiO2/WO3 electrode resulted in an increase in the visible light absorption and exhibited a significant improvement in photoelectrochemical performance. The photocurrent density at 0.1 V (vs. Ag/AgCl) of the CdS QDs/TiO2/WO3 electrode is 10 times higher than that of the TiO2/WO3 electrode under visible light irradiation. The demonstrated strategies of utilizing a TiO2/WO3 structure to protect the WO3 electrode surface open up new opportunities for other WO3 nanostructures. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：170 / 173

页数：4

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