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

Research output: Contribution to journalArticle

22 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 1

Keywords

  • Amorphous
  • Crystallization
  • Reduction
  • Ultraviolet
  • Zinc oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Biomaterials
  • Condensed Matter Physics
  • Materials Chemistry

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