Band-gap modification and tunable blue luminescence of wurtzite Mg xZn 1-xO thin films

Yusuke Ogawa, Shinobu Fujihara

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

We have demonstrated that sol-gel-derived wurtzite-type Mg xZn 1-xO films can exhibit reproducible blue emissions after heat treatments in a reducing atmosphere. Furthermore, the emission colors could be finely tuned by changing the Mg content x and band-gap values. In contrast, the films showed orange emissions when they were heated in an oxidizing atmosphere. Our results then provided new insight into the mechanism of the visible emissions of ZnO.

Original languageEnglish
Pages (from-to)1825-1828
Number of pages4
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume202
Issue number9
DOIs
Publication statusPublished - 2005 Jul 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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