期刊
APPLIED PHYSICS LETTERS
卷 103, 期 13, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4822110
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资金
- Deutsche Forschungsgemeinschaft (DFG) [KA 3262/2-1]
- Russian Fund for Basic Research [12-01-00635]
We show that the growth kinetics of dense arrays of self-induced GaN nanowires involves the exchange of Ga atoms between nanowires: Ga atoms desorbed from the side surfaces of nanowires readsorb on neighboring nanowires. This process favors the growth of shorter nanowires and gives rise to a narrow nanowire height distribution during the late stages of growth. We propose a stochastic differential equation model which describes the growth of dense nanowire ensembles. The model calculations are in good agreement with the experiments. (C) 2013 AIP Publishing LLC.
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