Enhanced visible light conversion efficiency using nanocrystalline WO3 films

Authors
Santato, C Ulmann, M Augustynski, J
Citation
C. Santato et al., Enhanced visible light conversion efficiency using nanocrystalline WO3 films, ADVAN MATER, 13(7), 2001, pp. 511
Citations number
14
Categorie Soggetti
Multidisciplinary,"Material Science & Engineering
Journal title
ADVANCED MATERIALS
ISSN journal
09359648 → ACNP
Volume
13
Issue
7
Year of publication
2001
Database
ISI
SICI code
0935-9648(20010404)13:7<511:EVLCEU>2.0.ZU;2-I
Abstract
Drastically improved photooxidation efficiencies, when compared to bulk WO3 , are obtained with nanocrystalline WO3 films (see Figure) deposited from a colloidal solution of tungstic acid. Saturation of the photocurrent, which occurs even for moderate potential differences, indicates a completely dif ferent mechanism of charge separation. The electrodes should be highly effe ctive for photoelectrolysis of water by sunlight. [GRAPHICS]