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Journal of Nanomaterials
Volume 2015 (2015), Article ID 201420, 6 pages
Research Article

Substrate-Dependent Differences in the Crystal Structures and Optical Properties of ZnSe Nanowires

1Department of Physics, Kyonggi University, Suwon, Gyeonggi-do 443-760, Republic of Korea
2School of Advanced Device Engineering, University of Science & Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 305-350, Republic of Korea
3Nano Electron-Source Creative Research Center, Electronics and Telecommunications Research Institute, 218 Gajeong-ro, Yuseong-gu, Daejeon 305-700, Republic of Korea
4Department of Applied Physics and Institute of Nanoscience and Biotechnology, Dankook University, Yongin 448-701, Republic of Korea

Received 20 August 2015; Accepted 21 September 2015

Academic Editor: Magnus Willander

Copyright © 2015 Keumyoung Seo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The optical and structural properties of ZnSe nanowires directly grown on three different substrates, SiO2, ITO, and graphene, were investigated. ZnSe nanowires grown on graphene and SiO2 were found to have cubic structures, while ZnSe nanowires grown on ITO had a mixed cubic and hexagonal structure. The main peaks in the photoluminescence spectra of ZnSe nanowires grown on SiO2, ITO, and graphene were located at 459, 627, and 627/460 nm, respectively. In addition, a field-emission light-emitting device was fabricated using ZnSe nanowires as a phosphor and graphene as an electrode. The device showed a red emission peak with Commission Internationale de L’Eclairage coordinates of (0.621, 0.315).