Ag2S quantum dots-sensitized TiO2 nanotube array photoelectrodes

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Ag2S quantum dots (QDs) were deposited on ordered TiO2 nanotube arrays (TNTAs) using a sequential chemical bath deposition (S-CBD) approach. AgNO3 and thiourea were used as the precursor materials of Ag+ and S2- ions, respectively. The decoration of Ag2S QDs significantly shifted the absorption spectrum of the TNTAs to visible light region. As a result, Ag2S QDs-sensitized TNTAs exhibited much higher photocurrent density than pure TNTAs under visible light irradiation. (C) 2011 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2012-01
Language
English
Article Type
Article
Keywords

SOLAR-CELLS; PHOTOCATALYTIC ACTIVITY; ENERGY-CONVERSION; CDSE NANOCRYSTALS; CADMIUM-SULFIDE; SILVER SULFIDE; NANORODS; FILMS; ARCHITECTURES; FABRICATION

Citation

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, v.177, no.1, pp.106 - 111

ISSN
0921-5107
DOI
10.1016/j.mseb.2011.09.021
URI
http://hdl.handle.net/10203/94041
Appears in Collection
NE-Journal Papers(저널논문)
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