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

Yusuke Ogawa, Shinobu Fujihara

Research output: Contribution to journalArticle

35 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

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wurtzite
Luminescence
Energy gap
luminescence
Thin films
thin films
Sol-gels
Heat treatment
Color
atmospheres
heat treatment
gels
color

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Band-gap modification and tunable blue luminescence of wurtzite Mg xZn 1-xO thin films. / Ogawa, Yusuke; Fujihara, Shinobu.

In: Physica Status Solidi (A) Applications and Materials Science, Vol. 202, No. 9, 07.2005, p. 1825-1828.

Research output: Contribution to journalArticle

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