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DOI QR Code

전착 시간에 따른 ZnO 나노막대의 미세조직 변화와 광학적 성질

Microstructural Evolution and Optical Properties of Electrodeposited ZnO Nanorods with Deposition Time

  • 정윤숙 (경북대학교 신소재공학부) ;
  • 문진영 (경북대학교 신소재공학부) ;
  • 김형훈 (경북대학교 신소재공학부) ;
  • 이호성 (경북대학교 신소재공학부)
  • Jeong, Yoon Suk (School of Materials Science and Engineering, Kyungpook National University) ;
  • Moon, Jin Young (School of Materials Science and Engineering, Kyungpook National University) ;
  • Kim, Hyunghoon (School of Materials Science and Engineering, Kyungpook National University) ;
  • Lee, Ho Seong (School of Materials Science and Engineering, Kyungpook National University)
  • 투고 : 2011.01.10
  • 발행 : 2011.05.25

초록

ZnO nanorods were prepared by the electrodeposition route on conductive Au/Si substrates. The effects of deposition time on the microstructural evolution and optical properties of ZnO nanorods were investigated. With increasing deposition time from 1 h to 20 h, the diameter and length of the ZnO nanorods increased gradually to about 328 nm and 6.55${\mu}m$, respectively. The ZnO nanorods were dense and vertically well-aligned. The photoluminescence (PL) peaks corresponding to the near band edge of ZnO were observed. With increasing deposition time, the intensity of PL peaks increased with nanorod growth up to 4 h and then decreased. This might be due to the degradation of crystal quality caused by merging of nanorods.

키워드

과제정보

연구 과제 주관 기관 : 한국연구재단

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