Revealing the origin of high-energy Raman local mode in nitrogen doped ZnO nanowires

Khachadorian, S; Gillen, R; Ton-That, C; Zhu, L; Maultzsch, J; Phillips, MR; Hoffmann, A

Revealing the origin of high-energy Raman local mode in nitrogen doped ZnO nanowires

Khachadorian, S Gillen, R Ton-That, C

Zhu, L Maultzsch, J Phillips, MR

Hoffmann, A

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Publication Type:: Journal Article
Citation:: Physica Status Solidi - Rapid Research Letters, 2016, 10 (4), pp. 334 - 338
Issue Date:: 2016-04-01

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Field	Value	Language
dc.contributor.author	Khachadorian, S	en_US
dc.contributor.author	Gillen, R	en_US
dc.contributor.author	Ton-That, C https://orcid.org/0000-0003-3276-1739	en_US
dc.contributor.author	Zhu, L	en_US
dc.contributor.author	Maultzsch, J	en_US
dc.contributor.author	Phillips, MR https://orcid.org/0000-0003-1522-9281	en_US
dc.contributor.author	Hoffmann, A	en_US
dc.date.issued	2016-04-01	en_US
dc.identifier.citation	Physica Status Solidi - Rapid Research Letters, 2016, 10 (4), pp. 334 - 338	en_US
dc.identifier.issn	1862-6254	en_US
dc.identifier.uri	http://hdl.handle.net/10453/43201
dc.description.abstract	© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Raman scattering experiments complemented by density functional theory (DFT) calculations of phonon frequencies have been performed to understand the origin of observed high-energy local Raman modes at 2269 cm-1 and 2282 cm-1 on N-plasma treated ZnO nanowires (NWs). We show that these modes increase in intensity with prolonged N-plasma treatment. Our results reveal that the origin of the high-energy Raman local mode is a loosely bound N2 molecule in the vicinity of a zinc vacancy, which according to our latest work acts as a shallow acceptor and leads to the donor-acceptor-pair transition at 3.232 eV [Phys. Rev. B 92, 024103 (2015)]. Moreover the results provide a more thorough description of nitrogen related complexes in ZnO NWs. Scanning electron microscopy (SEM) image of ZnONWs.	en_US
dc.relation.ispartof	Physica Status Solidi - Rapid Research Letters	en_US
dc.relation.isbasedon	10.1002/pssr.201510405	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	Revealing the origin of high-energy Raman local mode in nitrogen doped ZnO nanowires	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	10	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	1007 Nanotechnology	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.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	10	en_US

Abstract:

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Raman scattering experiments complemented by density functional theory (DFT) calculations of phonon frequencies have been performed to understand the origin of observed high-energy local Raman modes at 2269 cm-1 and 2282 cm-1 on N-plasma treated ZnO nanowires (NWs). We show that these modes increase in intensity with prolonged N-plasma treatment. Our results reveal that the origin of the high-energy Raman local mode is a loosely bound N2 molecule in the vicinity of a zinc vacancy, which according to our latest work acts as a shallow acceptor and leads to the donor-acceptor-pair transition at 3.232 eV [Phys. Rev. B 92, 024103 (2015)]. Moreover the results provide a more thorough description of nitrogen related complexes in ZnO NWs. Scanning electron microscopy (SEM) image of ZnONWs.

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http://hdl.handle.net/10453/43201