Photoinduced surface roughness variation in polycrystalline TiO2 thin films

Ken ichi Katsumata, Akira Nakajima, Tadashi Shiota, Naoya Yoshida, Toshiya Watanabe, Yoshikazu Kameshima, Kiyoshi Okada

研究成果査読

29 被引用数 (Scopus)

抄録

Photoinduced microstructural changes in transparent anatase thin films with large-grain polycrystallites (-200 nm) were evaluated using atomic force microscopy (AFM). Films were subjected to a vacuum ultraviolet (VUV) pretreatment before heating at 500 °C. Photoinduced wettability of the films was subsequently confirmed. Upon UV illumination, the surface image became blurred with an apparent increased surface roughness. The image sharpened gradually as the surface returned to its initial state. This microstructural surface change is most pronounced at grain boundaries.

本文言語English
ページ(範囲)75-79
ページ数5
ジャーナルJournal of Photochemistry and Photobiology A: Chemistry
180
1-2
DOI
出版ステータスPublished - 5月 15 2006
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 物理学および天文学(全般)

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