Growth and optical properties of nonpolar (1010) Zn1-xCo xO epitaxial film on a γ-LiAlO2 substrate

Jih-Jen Wu, Sian Jhang Lin, Wan Hsien Lin, Mitch M.C. Chou, Liuwen Chang, Ten Hsing Hwang, Chia Hao Chuang, Chun Wei Chen

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Abstract

Nonpolar (1010) Zn1-xCoxO films are grown on γ-LiAlO2(100) substrates by CVD. X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) results reveal that Co atoms become incorporated into the ZnO film via a substitution for Zn, when x≤0.15. The epitaxial relationships between the nonpolar Zn1-xCoxO film and γ-LiAlO2 substrate are [0001]ZnCoO ∥[010]LAO and [1010] ZnCoO∥[100]LAO, as determined by TEM. A decrease in the optical band-gap of the nonpolar Zn1-xCoxO film with increasing Co content is observed in absorption measurements.

Original languageEnglish
Pages (from-to)88-92
Number of pages5
JournalChemical Vapor Deposition
Volume17
Issue number4-6
DOIs
Publication statusPublished - 2011 Jun 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces and Interfaces
  • Process Chemistry and Technology

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