Title: Group V sensitive vapor–liquid–solid growth of Au-catalyzed and self-catalyzed III–V nanowires
Abstract: We present a new theoretical model that treats the group V sensitive growth rates and structures of Au-catalyzed and self-catalyzed III–V nanowires within a single kinetic picture. It is shown that Au-catalyzed III–V nanowires can grow with a time-independent radius within a wide range of parameters. At high V/III flux ratios, the vapor–liquid–solid growth of Au catalyzed III–V nanowires is controlled by surface diffusion of the group III adatoms, while at low V/III flux ratios it becomes nucleation-limited. Conversely, self-catalyzed III–V nanowires cannot grow with a time-independent droplet size and instead such nanowires may either swell or shrink or converge to a certain stationary radius depending on the V/III flux ratio. Quite importantly, the results are presented in a concise analytical form which is convenient for comparison with experimental data or prior theoretical works. We demonstrate how the model fits the data obtained previously for Au- and Ga-catalyzed GaAs nanowires.
Publication Year: 2016
Publication Date: 2016-04-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 31
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