Journal of the Korean Physical Society

Korean Physical Society (한국물리학회)
권호 표지

Structural and Optical Properties of ZnO Films Grown on SapphireSubstrates Subjected to Substrate Temperature

Cho, Shin-Ho

  • Published : 20060000
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Abstract

We present the e ect of substrate temperature on the structural and the optical properties of ZnO films grown on sapphire substrates by using pulsed laser deposition. Growing at higher substrate temperature results in an increase in the surface roughness and the size of the grains. The optimum c-axis orientation of the ZnO films occurs at a substrate temperature of 700 C. The decay time, obtained from a least-squares fit of the data to a single exponential, shows a rapid increase in the substrate temperature from 400 C to 500 C and falls gradually as the substrate temperature approaches 700 C. These results are due to variations in the nature of defects and strain with changing substrate temperature.

Keywords

References

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