Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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The properties of ZnO/MgO films prepared by ultrasonic spray pyrolysis

초음파분무법으로 제조한 ZnO/MgO막의 특성

  • Choi, Mu-Hee (Department of Electrical Engineering and RICIC, Gyeongsang national University) ;
  • Ma, Tae-Young (Department of Electrical Engineering and RICIC, Gyeongsang national University)
  • 최무희 (경상대학교 대학원 전기공학과 및 RICIC) ;
  • 마대영 (경상대학교 전기전자공학부 및 RICIC)
  • Published : 2005.09.30
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Abstract

ZnO films were deposited on MgO substrates (ZnO/MgO) by ultrasonic spray pyrolysis. Substrate temperature varied from $250^{\circ}C$ to $350^{\circ}C$. The crystallographic properties and surface morphologies of the ZnO/MgO films were studied by X-ray diffraction and scanning electron microscopy. The properties of photoluminescence (PL) for the films were investigated by dependence of PL spectra on the substrate temperature and the annealing temperature. The ZnO/MgO films prepared at $350^{\circ}C$ showed the strongest Ultraviolet light emission peak at 18 K and 300 K among the films in this study. The annealing process increases the visible light emission, which is due to the increased oxygen vacancies.

Keywords

References

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