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Vol.52, No.5, 385 ~ 391, 2014
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| Title |
| Influence of Li atoms on the properties of ZnO thin films synthesized by sol-gel spin-coating method |
| 김영규 Young Gyu Kim , 박형길 Hyung Gil Park , 지익수 Ik Soo Ji , 김소아람 So A Ram Kim , 김종수 Jong Su Kim , 김진수 Jin Soo Kim , 김양수 Yang Soo Kim , 임재영 Jae Young Leem |
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| Abstract |
| Undoped and Li-doped ZnO(LZO) thin films were grown on quartz substrates by a sol-gel spin- coating method. The effects of Li contents on the structural and optical properties of the ZnO thin flims were investigated by X-ray diffraction (XRD), photoluminescence (PL), and ultraviolet-visible spectrophotometer. In the XRD investigation, undoped and LZO thin films had a wurtzite structure and high c-axis orientation. The intensity and the full width at half maximum (FWHM) of the (002) peak for LZO was the largest and smallest at 2.5 at%, which indicate that the LZO thin film is the most crystalline at 2.5 at%. In the PL investigation, the near band edge emissions of the LZO thin films were blue-shifted and the FWHM of the LZO thin films decreased with increasing Li doping concentrations. |
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| Key Words |
| Zinc oxide, Sol-gel, Lithium, Thin films, Optical properties, X-ray diffraction |
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