Visible photoluminescence of ZnO nanoparticles dispersed in highly transparent MgF2 thin-films via sol-gel process

Shinobu Fujihara, Hiroki Naito, Toshio Kimura

研究成果: Article査読

80 被引用数 (Scopus)

抄録

ZnO/MgF2 nanocomposite thin films, where ZnO nanoparticles were dispersed in an MgF2 matrix, were prepared by a sol-gel method using metal acetates, isopropanol, trifluoroacetic acid, monoethanolamine and water as starting materials. The particle size of ZnO was approximately 6.2 nm, showing quantum size effects in the absorption edge measurement. Green photoluminescent (PL) emission from the films was observed at room temperature. The emission intensity was found to be greatly dependent on heat-treatment temperature and time. By optimizing the heating conditions, the film with high transparency and high PL intensity was obtained. Influence of the heating conditions on the formation of the ZnO nanoparticles and the green emission was discussed.

本文言語English
ページ(範囲)227-232
ページ数6
ジャーナルThin Solid Films
389
1-2
DOI
出版ステータスPublished - 2001 6月 15

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 表面および界面
  • 表面、皮膜および薄膜
  • 金属および合金
  • 材料化学

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