期刊
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
卷 42, 期 9, 页码 2285-2288出版社
ELSEVIER
DOI: 10.1016/j.physe.2010.05.005
关键词
ZnO; Nanorod; Growth mechanism; Diffusion-induced; VLS
资金
- MKE (The Ministry of Knowledge Economy), Korea under the ITRC (Information Technology Research Center) [NIPA-2010-C1090-1021-0015]
- MKE [2008-E-EL-02-P-02-0-000-2008]
We studied a kinetic model of the ZnO nanorod (NR) growth that occurs via vapor phase transportation (VPT). The mechanism of ZnO NR growth was discussed in terms of the length-to-diameter (L-D) relationship of NRs, and it was confirmed by varying both the type of catalyst and source material used. Both theoretical calculations and experimental data indicated that elongation of NRs is primarily determined by diffusion of the absorbed atoms (adatoms) within a nominal migration length on the surface, which is not considered in the simple vapor-liquid-solid model. (C) 2010 Elsevier B.V. All rights reserved.
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