MBE n-ZnO/MOCVD p-GaN heterojunction light-emitting diode

S. P. Chang, R. W. Chuang, S. J. Chang, Y. Z. Chiou, C. Y. Lu

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

The growth, fabrication, and subsequent electroluminescence (EL) characterization of an n-ZnO/p-GaN heterojunction light-emitting diode prepared on c-Al2O3 substrate are presented. The diode-like I-V characteristics and room temperature EL spectrum with an intense broadband emission in the yellow-green spectral region has been observed with forward bias applied. Photoluminescence (PL) and Raman spectra of the n-ZnO and p-GaN films were also measured. By comparing PL and EL spectra, it was concluded that the deep-level defect-related emission mainly originated from the GaN epitaxial layer.

Original languageEnglish
Pages (from-to)5054-5056
Number of pages3
JournalThin Solid Films
Volume517
Issue number17
DOIs
Publication statusPublished - 2009 Jul 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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