Enhanced photovoltaic response of the first polyoxometalate-modified zinc oxide photoanode for solar cell application

被引：61

作者：

Luo, Xinze ^{[1
,2
]}

Li, Fengyan ^{[1
]}

Xu, Bingbing ^{[1
]}

Sun, Zhixia ^{[1
]}

Xu, Lin ^{[1
]}

机构：

[1] NE Normal Univ, Coll Chem, Minist Educ, Key Lab Polyoxometalates Sci, Changchun 130024, Peoples R China

[2] Yili Normal Univ, Coll Chem & Biol Sci, Yining 835000, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 30期

关键词：

DYE; TIO2; ELECTRODEPOSITION; NANOSTRUCTURES; NANOPARTICLES; PERFORMANCE;

D O I：

10.1039/c2jm16018h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A photovoltaic electrode consisting of polyoxometalate (SiW12) and zinc oxide (ZnO) was fabricated on indium tin oxide (ITO) glass by one-step electrodeposition. The addition of SiW12 strongly influences the morphology and crystallographic orientation of the ZnO. The photovoltaic properties of the ZnO film and the SiW12-ZnO composite films were investigated via solar cell assembly. Both transient photocurrent and current-voltage curve measurements demonstrate that the photocurrent and power conversion efficiency of the SiW12-ZnO composite film were markedly enhanced in comparison with that of the ZnO film. Based on the results of fluorescence quenching measurements, the enhanced photovoltaic effect should be attributed to the occurrence of the photoinduced electron transfer between polyoxometalate and ZnO, which increases the efficient dissociation of excited electron-hole pairs (excitons).

引用

页码：15050 / 15055

页数：6

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