Issue 85, 2016, Issue in Progress

Investigation on the photoconductivity of polyoxometalates

Abstract

Polyoxometalates (POMs), a class of molecular metal-oxo cluster compounds based mainly on Mo, W, and V elements, have shown superior physicochemical properties and various applications. In this study, we investigate the photoconductivity of Keggin-type tungsten-series POMs, H3PW12O40, Na3SiW12O40, Na3GeW12O40 and Na6H2W12O40, considering that photoconductivity can be closely related to the potential applications in sensors, photodetectors, photovoltaics, and photocatalysis. The results from the photoconductivity measurements demonstrate that the photoconductive performance of the POM is clearly dependent on the type of POM. Moreover, H3PW12O40 exhibited a much higher photocurrent than the others; this may be due to the different photogenerated electron–hole recombination rate and photogeneration efficiency of the POMs. Furthermore, H3PW12O40 exhibited a good sensing performance for ethanol gas.

Graphical abstract: Investigation on the photoconductivity of polyoxometalates

Supplementary files

Article information

Article type
Paper
Submitted
15 Jun 2016
Accepted
22 Aug 2016
First published
22 Aug 2016

RSC Adv., 2016,6, 81466-81470

Investigation on the photoconductivity of polyoxometalates

N. Li, S. Fang, Z. Sun, R. Liu and L. Xu, RSC Adv., 2016, 6, 81466 DOI: 10.1039/C6RA15544H

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