Ag2S quantum dots-sensitized TiO2 nanotube array photoelectrodes

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2012 Korea (Republic of) English Publisher:Elsevier BVJournal:Materials Science and Engineering: B, volume 177, pages 106-111 (issn: 0921-5107,

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Authors: Xie, Y Xie, Yi; Yoo, SH Yoo, Seung-Hwa; Chen, C Chen, Chong; Cho, SO Cho, Sung-Oh;

doi: 10.1016/j.mseb.2011.09.021

handle: 10203/94041

Ag2S quantum dots-sensitized TiO2 nanotube array photoelectrodes

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Abstract

Abstract 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.

Country

Korea (Republic of)

Related Organizations

Korea Advanced Institute of Science and Technology
Korea (Republic of)
Korean Association Of Science and Technology Studies
Korea (Republic of)
Korea Advanced Institute of Science and Technology
Korea (Republic of)

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