Journal
JOURNAL OF MATERIALS RESEARCH
Volume 24, Issue 10, Pages 3032-3037Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/JMR.2009.0391
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Funding
- Korea government [R0A-2007-000-20044-0]
- Korea Science and Engineering Foundation through the Quantum Functional Semiconductor Research Center at Dongguk University
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Scanning electron microscopy and transmission electron microscopy images and selected area electron diffraction pattern showed that the one-dimensional GaN nanorods with [0001]-oriented single-crystalline wurzite structures were formed on Si (111) substrates by using hydride vapor-phase epitaxy without a catalyst. Although some stacking faults and inversion domain boundaries existed in the GaN nanorods, few other defects such as threading dislocations were observed. The fort-nation of the facet plane in the N-polar region of the GaN nanorod containing an inversion domain boundary originated from the slow growth rate, followed by the lateral adatom diffusion from the Ga-polar region to reduce the length difference.
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