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Growth of ZnO nanorod arrays by hydrothermal method using homo-seed layers annealed at various temperatures

Title
Growth of ZnO nanorod arrays by hydrothermal method using homo-seed layers annealed at various temperatures
Authors
Bae, YS[Bae, Young Sook]Kim, DC[Kim, Dong Chan]Ahn, CH[Ahn, Cheol Hyoun]Kim, JH[Kim, Jae Hyun]Cho, HK[Cho, Hyung Koun]
DGIST Authors
Kim, JH[Kim, Jae Hyun]
Issue Date
2010-06
Citation
Surface and Interface Analysis, 42(6-7), 978-982
Type
Article
Article Type
Article; Proceedings Paper
Keywords
Annealing TemperaturesDeep Level EmissionGelsHydrothermalHydrothermal MethodsHydrothermallyHydroxyl GroupsNanorod FormationNanorodsOrange-RedOxygenOxygen VacanciesPreferred OrientationsSeedSeed LayerSeed LayersSol-Gel ProcessSolution ProcessZinc OxideZnOZnO NanorodZnO Nanorod Arrays
ISSN
0142-2421
Abstract
Vertically arrayed ZnO nanorods were synthesized by a hydrothermal method on homo-seed layers deposited using a sol-gel process and heat-treated at various temperatures ranging from 400 to 700 °C in air. The effect of the annealing temperatures on nanorod formation was investigated. With increasing temperature, the microstructure of the ZnO seed layers changed from nanocrystals to coarse polycrystals with a preferred orientation, which led to an increase in the length and diameter of the hydrothermally grown nanorods. The ZnO nanorods, based on a solution process, exhibited deep-level emission in the orange- red region related with hydroxyl group reactions, while the thermally treated seed layers showed oxygen vacancy-related emission. Copyright © 2010 John Wiley & Sons, Ltd.
URI
http://hdl.handle.net/20.500.11750/3519
DOI
10.1002/sia.3262
Publisher
Wiley Blackwell
Related Researcher
Files:
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Collection:
Smart Textile Convergence Research Group1. Journal Articles


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