Photoluminescence properties of ZnO thin films grown by using the hydrothermal technique

Trilochan Sahoo, Lee Woon Jang, Ju Won Jeon, Myoung Kim, Jin Soo Kim, In Hwan Lee, Joon Seop Kwak, Jaejin Lee

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The photoluminescence properties of zinc-oxide thin films grown by using the hydrothermal technique have been investigated. Zinc-oxide thin films with a wurtzite symmetry and c-axis orientation were grown in aqueous solution at 90 °C on sapphire substrates with a p-GaN buffer layer by using the hydrothermal technique. The low-temperature photoluminescence analysis revealed a sharp bound-exciton-related luminescence peak at 3.366 eV with a very narrow peak width. The temperature-dependent variations of the emission energy and of the integrated intensity were studied. The activation energy of the bound exciton complex was calculated to be 7.35 ± 0.5 meV from the temperature dependent quenching of the integral intensities.

Original languageEnglish
Pages (from-to)809-812
Number of pages4
JournalJournal of the Korean Physical Society
Volume56
Issue number3
DOIs
Publication statusPublished - 2010 Mar 15
Externally publishedYes

Keywords

  • Bound exciton
  • Hydrothermal
  • Photoluminescence
  • Thin film
  • ZnO

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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