Correlation of thickness with the photocatalytic characteristic of TiO 2 thin films

Sangwook Lee, Hyun Suk Jung, Dong Wook Kim, Kug Sun Hong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

5, 10, and 30 nm thickness of transparent TiO2 thin films were fabricated using sol-gel process, and the influence of film thickness on the photocatalytic property was investigated. The increase in film thickness was found to enhance the photocatalytic property of the films. Photocatalytic properties of each film were estimated by decomposition of stearic acid. The amount of decomposed stearic acid increased with film thickness (5-30 nm). For the case of 30 nm thickness film, the stearic acid was decomposed perfectly in twelve minutes. UV-vis spectra and photocurrents of each film clearly showed that the photoactivities of TiO2 films were related to the amount of absorbed UV light and band gap shift.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design VI - Proceedings of the 6th International Symposium on Eco-Materials Processing and Design, ISEPD-6
PublisherTrans Tech Publications Ltd.
Pages65-68
Number of pages4
ISBN (Print)0878499660, 9780878499663
DOIs
StatePublished - 2005
Event6th International Symposium on Eco-Materials Processing and Design, ISEPD-6 - Jinju, Korea, Republic of
Duration: 16 Jan 200518 Jan 2005

Publication series

NameMaterials Science Forum
Volume486-487
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference6th International Symposium on Eco-Materials Processing and Design, ISEPD-6
Country/TerritoryKorea, Republic of
CityJinju
Period16/01/0518/01/05

Keywords

  • Photocatalyst
  • Thickness
  • Thin film

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