Growth Mechanism and Elemental Distribution of β-Ga2O3 Crystalline Nanowires Synthesized by Cobalt-Assisted Chemical Vapor Deposition

Authors: Wang, Hui; Lan, Yucheng; Zhang, Jiaming; Crimp, Martin A.; Ren, Zhifeng

Source: Journal of Nanoscience and Nanotechnology, Volume 12, Number 4, April 2012 , pp. 3101-3107(7)

Publisher: American Scientific Publishers

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Abstract:

Long β-Ga2O3 crystalline nanowires are synthesized on patterned silicon substrates using chemical vapor deposition technique. Advanced electron microscopy indicates that the as-grown β-Ga2O3 nanowires are consisted of poly-crystalline (Co, Ga)O tips and straight crystalline β-Ga2O3 stems. The catalytic cobalt not only locates at the nanowire tips but diffuses into β-Ga2O3 nanowire stems several ten nanometers. A solid diffusion growth mechanism is proposed based on the spatial elemental distribution along the β-Ga2O3 nanowires at nanoscale.

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2012.5823

Publication date: April 1, 2012

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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