Jump to main content
Jump to site search

Issue 36, 2016
Previous Article Next Article

Keplerate-type polyoxometalate/semiconductor composite electrodes with light-enhanced conductivity towards highly efficient photoelectronic devices

Author affiliations

Abstract

Metal oxide semiconductor (MOS) photoelectrodes hold great promise for new energy and environmental applications, from water splitting to photoelectronic devices. Here, we show an efficient polyoxometalate assistance strategy for the design and fabrication of MOS composite photoelectrodes with light enhanced conductivity. Four types of MOS based photoelectrodes were fabricated by a simple wet chemistry method through bounding TiO2, SnO2, WO3, and ZnO with keplerate-type polyoxometalate (NH4)42[MoVI72MoV60O372(CH3COO)30(H2O)72] ({Mo132}), respectively. In these photoelectrodes, {Mo132} may act as a photo-induced electron acceptor/donor to accelerate electron transfer and then improve their conductivity efficiently. We further demonstrated that the 5% {Mo132}/TiO2 modified photoanode, in dye-sensitized solar cells (DSSCs), exhibits a power conversion efficiency (PCE) of 7.94% (31% improvement compared with that of the TiO2-based cell (6.06%)).

Graphical abstract: Keplerate-type polyoxometalate/semiconductor composite electrodes with light-enhanced conductivity towards highly efficient photoelectronic devices

Back to tab navigation

Supplementary files

Article information


Submitted
09 May 2016
Accepted
29 Jul 2016
First published
01 Aug 2016

J. Mater. Chem. A, 2016,4, 14025-14032
Article type
Paper
Author version available

Keplerate-type polyoxometalate/semiconductor composite electrodes with light-enhanced conductivity towards highly efficient photoelectronic devices

S. Xu, Y. Wang, Y. Zhao, W. Chen, J. Wang, L. He, Z. Su, E. Wang and Z. Kang, J. Mater. Chem. A, 2016, 4, 14025
DOI: 10.1039/C6TA03853K

Social activity

Search articles by author

Spotlight

Advertisements