Correlation between the structural and optical properties of Mn-doped ZnO nanoparticles

Ton-That, C; Foley, M; Phillips, MR; Tsuzuki, T; Smith, Z

Correlation between the structural and optical properties of Mn-doped ZnO nanoparticles

Ton-That, C

Foley, M

Phillips, MR

Tsuzuki, T

Smith, Z

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Publication Type:: Journal Article
Citation:: Journal of Alloys and Compounds, 2012, 522 pp. 114 - 117
Issue Date:: 2012-05-05

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Field	Value	Language
dc.contributor.author	Ton-That, C https://orcid.org/0000-0003-3276-1739	en_US
dc.contributor.author	Foley, M https://orcid.org/0000-0003-4077-445X	en_US
dc.contributor.author	Phillips, MR https://orcid.org/0000-0003-1522-9281	en_US
dc.contributor.author	Tsuzuki, T https://orcid.org/0000-0002-2002-3758	en_US
dc.contributor.author	Smith, Z	en_US
dc.date.issued	2012-05-05	en_US
dc.identifier.citation	Journal of Alloys and Compounds, 2012, 522 pp. 114 - 117	en_US
dc.identifier.issn	0925-8388	en_US
dc.identifier.uri	http://hdl.handle.net/10453/17981
dc.description.abstract	The crystallographic and optical properties of Mn-doped ZnO nanoparticles prepared by a sol-gel process have been investigated by X-ray diffraction, UV-visible absorption spectroscopy and cathodoluminescence microanalysis. X-ray diffraction reveals that the nanoparticles have hexagonal wurtzite crystal structure, with the lattice constants along the a- and c-axes increasing with increasing Mn concentration from 0 to 2.4 at%. For all Mn concentrations in this range, the nanoparticles are essentially free of native point defects so that they exhibit only band-edge luminescence. The optical bandgap and band-edge emission energies for Mn-doped ZnO were found to increase in proportion to the lattice constants. The direct correlation between the bandgap and crystal structure suggests that the band-edge optical properties of Mn-doped ZnO is predominantly influenced by the amount of Mn atoms substituting Zn on the lattice sites. © 2012 Elsevier B.V. All rights reserved.	en_US
dc.relation.ispartof	Journal of Alloys and Compounds	en_US
dc.relation.isbasedon	10.1016/j.jallcom.2012.01.116	en_US
dc.subject.classification	Materials	en_US
dc.title	Correlation between the structural and optical properties of Mn-doped ZnO nanoparticles	en_US
dc.type	Journal Article
utslib.citation.volume	522	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	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
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	522	en_US

Abstract:

The crystallographic and optical properties of Mn-doped ZnO nanoparticles prepared by a sol-gel process have been investigated by X-ray diffraction, UV-visible absorption spectroscopy and cathodoluminescence microanalysis. X-ray diffraction reveals that the nanoparticles have hexagonal wurtzite crystal structure, with the lattice constants along the a- and c-axes increasing with increasing Mn concentration from 0 to 2.4 at%. For all Mn concentrations in this range, the nanoparticles are essentially free of native point defects so that they exhibit only band-edge luminescence. The optical bandgap and band-edge emission energies for Mn-doped ZnO were found to increase in proportion to the lattice constants. The direct correlation between the bandgap and crystal structure suggests that the band-edge optical properties of Mn-doped ZnO is predominantly influenced by the amount of Mn atoms substituting Zn on the lattice sites. © 2012 Elsevier B.V. All rights reserved.

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http://hdl.handle.net/10453/17981