Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Crystal growth and optical properties with preheating temperature of sol-gel derived ZnO thin films

  • Kim, Young-Sung (Advanced Material Process of Information Technology, Sungkyunkwan University) ;
  • Lee, Choong-Sun (Department of Physics, Ajou University) ;
  • Kim, Ik-Joo (LG Production Engineering Research Center) ;
  • Ko, Hyung-Duk (Advanced Material Process of Information Technology, Sungkyunkwan University) ;
  • Tai, Weon-Pil (Institute of Advanced Materials, Inha University) ;
  • Song, Yong-Jin (Department of Physics, Ajou University) ;
  • Suh, Su-Jeung (Advanced Material Process of Information Technology, Sungkyunkwan University)
  • Published : 2004.10.01
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Abstract

We try to use isopropanol which has low boiling point to prepare ZnO thin films at low temperature. ZnO thin films were prepared by sol-gel spin-coating method using zinc acetate dehydrate-isopropanol-monoethanolamine (MEA) solution. The c-axis preferred orientation and optical properties of ZnO films with preheating temperature have been investigated. ZnO thin films were preheated at 200 to $300^{\circ}C$ with an interval of $25^{\circ}C$ and post-heated at $650^{\circ}C$. The ZnO film preheated at $275^{\circ}C$ and post-heated at $650^{\circ}C$ was highly oriented along c-axis (002) plane, and the surface with homogeneous and dense microstructures was formed having nano-sized grains. The optical transmittance was above 90 % in the visible range and exhibited absorption edges at 368 nm wavelength.

Keywords

References

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