The effect of nitridation on the polarity and optical properties of GaN self-assembled nanorods

Zhao, B; Lockrey, MN; Caroff, P; Wang, N; Li, L; Wong-Leung, J; Tan, HH; Jagadish, C

The effect of nitridation on the polarity and optical properties of GaN self-assembled nanorods

Zhao, B Lockrey, MN

Caroff, P Wang, N Li, L Wong-Leung, J Tan, HH Jagadish, C

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Publication Type:: Journal Article
Citation:: Nanoscale, 2018, 10 (23), pp. 11205 - 11210
Issue Date:: 2018-06-21

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Field	Value	Language
dc.contributor.author	Zhao, B	en_US
dc.contributor.author	Lockrey, MN https://orcid.org/0000-0002-0050-2858	en_US
dc.contributor.author	Caroff, P	en_US
dc.contributor.author	Wang, N	en_US
dc.contributor.author	Li, L	en_US
dc.contributor.author	Wong-Leung, J	en_US
dc.contributor.author	Tan, HH	en_US
dc.contributor.author	Jagadish, C	en_US
dc.date.issued	2018-06-21	en_US
dc.identifier.citation	Nanoscale, 2018, 10 (23), pp. 11205 - 11210	en_US
dc.identifier.issn	2040-3364	en_US
dc.identifier.uri	http://hdl.handle.net/10453/131074
dc.description.abstract	© 2018 The Royal Society of Chemistry. We report on the effect of nitridation on GaN self-assembled nanorods grown on the c-plane sapphire by metalorganic chemical vapour deposition (MOCVD). Nitridation conditions are found to critically influence the nanorod morphology and optical properties. The nanorod polarity was determined through a direct observation of atomic dumbbell pairs. While purely N-polar wires are obtained under optimised nitridation, incomplete or missing nitridation leads to mixed polarity. By comparing the morphology and the crystal structure with spatially resolved cathodoluminescence results, our study unambiguously establishes a link between appropriate nitridation duration and a homogeneous improvement in optical quality.	en_US
dc.relation.ispartof	Nanoscale	en_US
dc.relation.isbasedon	10.1039/c8nr00737c	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.title	The effect of nitridation on the polarity and optical properties of GaN self-assembled nanorods	en_US
dc.type	Journal Article
utslib.citation.volume	23	en_US
utslib.citation.volume	10	en_US
utslib.for	1007 Nanotechnology	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	10 Technology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	closed_access
pubs.issue	23	en_US
pubs.publication-status	Published	en_US
pubs.volume	10	en_US

Abstract:

© 2018 The Royal Society of Chemistry. We report on the effect of nitridation on GaN self-assembled nanorods grown on the c-plane sapphire by metalorganic chemical vapour deposition (MOCVD). Nitridation conditions are found to critically influence the nanorod morphology and optical properties. The nanorod polarity was determined through a direct observation of atomic dumbbell pairs. While purely N-polar wires are obtained under optimised nitridation, incomplete or missing nitridation leads to mixed polarity. By comparing the morphology and the crystal structure with spatially resolved cathodoluminescence results, our study unambiguously establishes a link between appropriate nitridation duration and a homogeneous improvement in optical quality.

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http://hdl.handle.net/10453/131074