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Cited 128 time in webofscience Cited 139 time in scopus
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Vertically aligned ZnO nanostructures grown on graphene layers

Title
Vertically aligned ZnO nanostructures grown on graphene layers
Authors
Kim, YJLee, JHYi, GC
POSTECH Authors
Kim, YJ
Date Issued
Nov-2009
Publisher
AMER INST PHYSICS
Abstract
We report the vertical growth of ZnO nanostructures on graphene layers and their photoluminescence (PL) characteristics. ZnO nanostructures were grown vertically on the graphene layers using catalyst-free metal-organic vapor-phase epitaxy. The surface morphology of the ZnO nanostructures on the graphene layers depended strongly on the growth temperature. Further, interesting growth behavior leading to the formation of aligned ZnO nanoneedles in a row and vertically aligned nanowalls was also observed and explained in terms of enhanced nucleation on graphene step edges and kinks. Additionally, the optical characteristics and carbon incorporation into ZnO were investigated using variable-temperature PL spectroscopy.
URI
http://oasis.postech.ac.kr/handle/2014.oak/9661
DOI
10.1063/1.3266836
ISSN
0003-6951
Article Type
Article
Citation
APPLIED PHYSICS LETTERS, vol. 95, no. 21, page. 213101 - 213101, 2009-11
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 KIM, YONG JIN
Dept of Materials Science & Enginrg
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