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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 3
BKCSDE 32(3)
March 20, 2011 

Post-Annealing Effects on Properties of ZnO Nanorods Grown on Au Seed Layers
Min Young Cho, Min Su Kim, Hyun Young Choi, Kwang Gug Yim, Jae Young Leem *
Zinc oxide, Nanorod, Pyramid, Au seed layer, Hydrothermal method
ZnO nanorods were grown by hydrothermal method. Two kinds of seed layers, Au film and island seed layers were prepared to investigate the effect of seed layer on ZnO nanorods. The ZnO nanorod on Au island seed layer has more unifom diameter and higher density compared to that of ZnO nanorod on Au film seed layer. The ZnO nanorods on Au island seed layer were annealed at various temperatures ranging from 300 to 850 oC. The pinholes at the surface of the ZnO nanorods is formed as the annealing temperature is increased. It is noted that the pyramid structure on the surface of ZnO nanorod is observed at 850 oC. The intensity of ZnO (002) diffraction peak in X-ray diffraction pattern and intensity of near band edge emission (NBE) peak in photoluminescence (PL) are increased as the ZnO nanorods were annealed at the temperature of 300 oC.
880 - 884
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