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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Growth, Structural and Optical Properties of c-axis Oriented ZnO Nanorods Array by Hydrothermal Method

수열합성에 의한 c축 배향 ZnO 나노로드 배열의 성장과 구조, 광학적 특성

  • 김경범 (한국세라믹기술원 전자부품센터) ;
  • 김창일 (한국세라믹기술원 전자부품센터) ;
  • 정영훈 (한국세라믹기술원 전자부품센터) ;
  • 이영진 (한국세라믹기술원 전자부품센터) ;
  • 백종후 (한국세라믹기술원 전자부품센터)
  • Published : 2010.03.01
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Abstract

ZnO nanorods array have been grown on the seed crystal coated Si(100) substrate by hydrothermal method. The growth, structural and optical properties of ZnO nanorods array were investigated with a variation of precursor concentration from 0.01 M to 0.04 M. The array density of grown ZnO nanorods per same area was increased with increasing the concentration of precursor solution. Vertically aligned ZnO nanorods with hexagonal wurtzite structure have highly preferred c-axis orientation along (002) lattice plane. Especially, ZnO nanorods array developed from 0.04 M precursor solution showed a diameter of about 85 nm and length of 1.2 {\mu}m$ without any crystallographic defects. The photoluminescence spectra of ZnO nanorods from heavier precursor concentration exhibited stronger UV emission around 380 nm corresponding with near-band-edge emission.

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References

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