화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Materials Research, Vol.21, No.12, 660-665, December, 2011
DOI10.3740/MRSK.2011.21.12.660  Export Citation
수열합성법을 이용하여 우선 배향된 ZnO 나노와이어 성장 및 발광 특성
Growth and UV Emission of Preferred Oriented ZnO Nanowires Using Hydrothermal Process
김종현1, 2, 임연수1, 김성현2, †, 조진우2, 정대용3, †
  • 1명지대학교 신소재공학과
  • 2전자부품연구원 에너지나노소재연구센터
  • 3인하대학교 신소재공학부
Jong-Hyun Kim1, 2, Yun-Soo Lim1, Sung-Hyun Kim2, †, Jin-Woo Jo2, and Dae-Yong Jeong3, †
  • 1Department of Materials Science and Engineering, Myongji University, Yongin, Gyeonggi 449-728, Korea
  • 2Energy Nano Materials Research Center, Korea Electronics Technology Institute (KETI), Seongnam, Gyeonggi 463-816, Korea
  • 3School of Materials Engineering, Inha University, Incheon 402-751, Korea
E-mail:,
1-D ZnO nanowires have been attractive for their peculiar properties and easy growth at relatively low temperature. The length, diameter, and density of ZnO nanowires were determined by the several synthetic parameters, such as PEI concentration, growth time, temperature, and zinc salt concentration. The ZnO nanowires were grown on the <001> oriented seed layer using the hydrothermal process with zinc nitrate and HMTA (hexamethylenetetramine) and their structure and optical properties were characterized. The morphology, length and diameter of the nanowires were strongly affected by the relative and/or absolute concentration of Zn2+ and OH.1 and the hydrothermal temperature. When the concentrations of the zinc nitrate HMTA were the same as 0.015 M, the length and diameter of the nanowires were 1.97 μm and 0.07 μm, respectively, and the aspect ratio was 28.1 with the preferred orientation along the <001> direction. XRD and TEM results showed a high crystallinity of the ZnO nanowires. Optical measurement revealed that ZnO nanowires emitted intensive stimulated UV at 376 nm without showing visible emission related to oxygen defects.
Keywords:ZnO Nanowire;morphology;hydrothermal method;aspect ratio;UV emission
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