Thermal annealing effects of MBE-seed-layers on properties of ZnO nanorods grown by hydrothermal method

Title
Thermal annealing effects of MBE-seed-layers on properties of ZnO nanorods grown by hydrothermal method
Author(s)
김종수Min Su Kim[Min Su Kim]Kwang Gug Yim[Kwang Gug Yim]Hyun Young Choi[Hyun Young Choi]Min Young Cho[Min Young Cho]Ghun Sik Kim[Ghun Sik Kim]Su Min Jeon[Su Min Jeon]Dong-Yul Lee[Dong-Yul Lee]Jin Soo Kim[Jin Soo Kim]Jeong-Sik Son[Jeong-Sik Son]Joo In Lee[Joo In Lee]Jae-Young Leem[Jae-Young Leem]
Keywords
CHEMICAL-VAPOR-DEPOSITION; LOW-TEMPERATURE; FIELD-EMISSION; OPTICAL-PROPERTIES; NANOWIRE ARRAYS; FILMS; PRESSURE; ROUTE
Issue Date
201107
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF CRYSTAL GROWTH, v.326, no.1, pp.195 - 199
Abstract
ZnO nanorods on seed-layers were grown by the hydrothermal method. The seed-layers were grown by plasma-assisted molecular beam epitaxy (PA-MBE) and then in-situ annealed in O(2) plasma at the temperatures of 500, 700, and 800 degrees C, respectively. The effects of annealing temperature of the MBE-seed-layer on properties of the ZnO nanorods were investigated by using atomic force microscopy (AFM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and photoluminescence (PL). By the increase in the annealing temperature, the grains coalesce and their size becomes larger. The densities of the ZnO nanorods grown on the annealed MBE-seed-layers are higher than that of the as-prepared ZnO nanorod and their average grain size is gradually decreased. The optical properties such as the PL intensity ratio of the NBE to DLE and FWHM of the ZnO nanorods grown on the annealed MBE-seed-layers is enhanced compared with that of the as-prepared ZnO nanorod. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/24889http://dx.doi.org/10.1016/j.jcrysgro.2011.01.096
ISSN
0022-0248
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이과대학 > 물리학과 > Articles
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