Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Effect of Mn on the Growth of ZnO Crystals via a Thermal Evaporation of Zn-Mn Mixture

Zn-Mn 혼합물의 열 증발에 의한 ZnO 결정의 성장에 미치는 Mn의 영향

  • Lee, Geun-Hyoung (Department of Materials & Components Engineering, Dong-eui University)
  • 이근형 (동의대학교 융합부품공학과)
  • Received : 2014.04.24
  • Accepted : 2014.06.16
  • Published : 2014.07.01
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Abstract

ZnO crystals with different morphologies were synthesized through a thermal evaporation of Zn-Mn mixtures in air. The morphology was dependant on the Mn content in Zn-Mn mixture. The morphology was changed from rod to tetrapod shape with decreasing Mn content in Zn-Mn mixture. The result indicates that the concentration of Mn might be responsible for the different morphologies of ZnO crystals. XRD spectra showed that the ZnO crystals had a hexagonal wurtzite crystal strutures. For all the samples, room temperature cathodoluminescence spectra showed a ultra-violet emission at 380 nm and a green emission at around 500 nm. However, the intensity ratio of ultra-violet emission to green emission was significantly different with the Mn content in the source material.

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References

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