Crystallization and reduction of sol-gel-derived zinc oxide films by irradiation with ultraviolet lamp

Naoko Asakuma, Hiroshi Hirashima, Hiroaki Imai, Toshimi Fukui, Motoyuki Toki

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18 Citations (Scopus)

Abstract

Structural changes in sol-gel films with photo-irradiation were investigated using zinc oxide (ZnO) derived from zinc acetate. The exposure of the films to an ultraviolet lamp induced hexagonal ZnO crystals in a relatively dense amorphous structure. On the other hand, the formation of zinc metal was found in a porous gel film. The photo-induced crystallization and reduction are ascribed to the electronic excitation in the metastable non-crystalline states.

Original languageEnglish
Pages (from-to)181-184
Number of pages4
JournalJournal of Sol-Gel Science and Technology
Volume26
Issue number1-3
DOIs
Publication statusPublished - 2003 Jan

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Keywords

  • Amorphous
  • Crystallization
  • Reduction
  • Ultraviolet
  • Zinc oxide

ASJC Scopus subject areas

  • Ceramics and Composites

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