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Excitonic structure and absorption coefficient measurements of ZnO single crystal epitaxial films deposited by pulsed laser deposition

  • J. F. Muth
  • , R. M. Kolbas
  • , A. K. Sharma
  • , S. Oktyabrsky
  • , J. Narayan
  • North Carolina State University

Research output: Contribution to journalArticlepeer-review

360 Scopus citations

Abstract

Pulsed laser deposition grown high quality single crystal epitaxial ZnO thin films on c-plane sapphire substrates are investigated based on their optical properties. Results showed that optical and electrical properties are improved when annealing the films in oxygen. Transmission measurements and photoluminescence determined the absorption coefficient, band gap, and exciton binding energies.

Original languageEnglish
Pages (from-to)7884-7887
Number of pages4
JournalJournal of Applied Physics
Volume85
Issue number11
DOIs
StatePublished - Jun 1999

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