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Mobility enhanced photoactivity in sol-gel grown epitaxial anatase TiO2 films
- Jung, Hyun Suk;
- Lee, Jung-Kun;
- Lee, Jaegab;
- Kang, Bo Soo;
- Jia, Quanxi;
- 외 4명
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33초록
Epitaxial anatase thin films were grown on single-crystal LaAlO3 substrates by a sol-gel process. The epitaxial relationship between TiO2 and LaAlO3 was found to be [100]TiO2 vertical bar vertical bar [100]LAlO3 and (001)TiO2 vertical bar vertical bar(001)LaAlO3 based on X-ray diffraction and a high-resolution transmission electron microscopy. The epitaxial anatase films show significantly improved photocatalytic properties, compared with polycrystalline anatase film on fused silica substrate. The increase in the photocatalytic activity of epitaxial anatase films is explained by enhanced charge carrier mobility, which is traced to the decreased grain boundary density in the epitaxial anatase film.
키워드
THIN-FILMS; PHOTOCATALYTIC ACTIVITY; EFFICIENCY; TITANIA; LAALO3; INTERFACES; CONVERSION; ELECTRODE; THIN-FILMS; PHOTOCATALYTIC ACTIVITY; EFFICIENCY; TITANIA; LAALO3; INTERFACES; CONVERSION; ELECTRODE
- 제목
- Mobility enhanced photoactivity in sol-gel grown epitaxial anatase TiO2 films
- 저자
- Jung, Hyun Suk; Lee, Jung-Kun; Lee, Jaegab; Kang, Bo Soo; Jia, Quanxi; Nastasi, Michael; Noh, Jun Hong; Cho, Chin-Moo; Yoon, Sung Hoon
- 발행일
- 2008-03
- 유형
- Article
- 저널명
- Langmuir
- 권
- 24
- 호
- 6
- 페이지
- 2695 ~ 2698
- 언어
- ENG
- 출판사
- AMER CHEMICAL SOC
- 발행국가
- 미국
- 분량
- 4 페이지
- ISSN
- P 0743-7463