Synergistic enhancement of photovoltaic performance of TiO2 photoanodes by incorporation of Dawson-type polyoxometalate and gold nanoparticles

被引：42

作者：

Wang, Lihao ^{[1
]}

Xu, Lin ^{[1
]}

Mu, Zhongcheng ^{[1
]}

Wang, Chungang ^{[1
]}

Sun, Zhixia ^{[1
]}

机构：

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

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 44期

关键词：

SENSITIZED SOLAR-CELLS; PHOTOCATALYTIC ACTIVITY; METAL NANOPARTICLES; TITANIUM-DIOXIDE; VISIBLE-LIGHT; FILMS; SYSTEMS; CORE; NANOSTRUCTURES; DEPOSITION;

D O I：

10.1039/c2jm35314h

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：

To explore the synergistic effects of polyoxometalate and noble metal nanoparticles on the photovoltaic performance of titanium dioxide (TiO2), multilayer film photoanodes consisting of TiO2 nanoparticles, gold nanoparticles (Au) and Dawson-type polyoxometalate K6P2W18O62 (abbr. as P2W18) have been prepared by the layer-by-layer self-assembly method, and poly(styrenesulfonate) (PSS) was used as a film forming auxiliary material. These film electrodes were characterized by UV-vis spectra, X-ray photoelectron spectroscopy, atomic force microscopy, and photoelectrochemical measurements. Transient photocurrent and current-voltage curve measurements demonstrate that the photocurrent response and power conversion efficiency increase in the sequence: the TiO2 film < the P2W18/TiO2 film < the TiO2/P2W18/Au film. These results provide valuable information for photovoltaic and photoelectrochemical applications.

引用

页码：23627 / 23632

页数：6

共 36 条

[1] Photosensitization of TiO2 Nanostructures with CdS Quantum Dots: Particulate versus Tubular Support Architectures [J].