Diaz, R.
, Sharma, R.
, Jarvis, K.
, Zhang, Q.
and Mahajan, S.
(2012),
Direct observation of nucleation and early stages of growth of GaN nanowires, Journal of Crystal Growth, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906318
(Accessed March 5, 2025)
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Direct observation of nucleation and early stages of growth of GaN nanowires
Published
Author(s)
Rosa E. Diaz, , Karalee Jarvis, Qinglei Zhang, Subhash Mahajan
Abstract
We report for the first time direct observations of the nucleation and early stages of growth of GaN nanowires. The nanowires were formed by exposing Au + Ga droplets to ammonia. The formation process was observed in situ, and controlled in real time using an environmental transmission electron microscope. Observations show that the nucleation starts in the thin regions of the droplets as they supersaturate with nitrogen. The droplet-nanowire interfaces in the initial stages are multi-faceted, and become planar during the growth. Chemical and structural analysis shows that the resulting nanowires are GaN single crystals with the wurtzitic structure.Citation
Journal of Crystal Growth
Volume
341
Issue
1
Pub Type
Journals
Download Paper
Keywords
GaN, Nanowires, In situ, Nucleation, ESTEM
Citation
Issues
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Created February 14, 2012, Updated October 12, 2021