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Journal of Materials Science

, Volume 41, Issue 18, pp 5937–5940 | Cite as

Epitaxial growth of ZnO films on (100) and (001) γ-LiAlO2 substrates by pulsed laser deposition

  • Jun Zou
  • Shengming Zhou
  • Jun Xu
  • Xia Zhang
  • Xiaomin Li
  • Zili Xie
  • Ping Han
  • Rong Zhang
Article

Abstract

Structural and optical properties were investigated for ZnO films grown on (100) and (001) γ-LiAlO2 (LAO) substrates by pulsed laser deposition method. According XRD results, it is intuitionistic that (100) LAO is suitable for fabricating high quality ZnO film, while (001) LAO is unsuitable. The FWHM of XRD, stress in film and FWHM of UV PL spectra for ZnO films on (100) LAO show a decreasing with increasing substrate temperature from 300 to 600 °C. ZnO film fabricated at 600 °C has the greatest grain size, the smallest stress (0.47 Gpa) and PL FWHM value (∼85 meV). This means that the substrate temperature of 600 °C is optimum for ZnO film deposited on (100) LAO. Moreover, it was found that the UV PL spectra intensity of ZnO film is not only related to the grain size and stoichiometric, but also depends on the stress in the film.

Keywords

Substrate Temperature Pulse Laser Deposition Biaxial Stress Increase Substrate Temperature Film Stress 

Notes

Acknowledgements

This work was supported by the program of “Hundreds of Talents” of CAS and the national “863” project (2004AA311080).

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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina
  2. 2.Graduate school of Chinese Academy of ScienceBeijingChina
  3. 3.Shanghai Institute of CeramicsChinese Academy of ScienceShanghaiChina
  4. 4.Department of PhysicsNanjing UniversityNanjingChina

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