Diffusion synthesis and electronic properties of Fe-doped ZnO

Ton-That, C; Foley, M; Lem, LLC; McCredie, G; Phillips, MR; Cowie, BCC

Diffusion synthesis and electronic properties of Fe-doped ZnO

Ton-That, C

Foley, M

Lem, LLC McCredie, G Phillips, MR

Cowie, BCC

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Publication Type:: Journal Article
Citation:: Materials Letters, 2010, 64 (3), pp. 386 - 388
Issue Date:: 2010-02-15

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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	Lem, LLC	en_US
dc.contributor.author	McCredie, G	en_US
dc.contributor.author	Phillips, MR https://orcid.org/0000-0003-1522-9281	en_US
dc.contributor.author	Cowie, BCC	en_US
dc.date.issued	2010-02-15	en_US
dc.identifier.citation	Materials Letters, 2010, 64 (3), pp. 386 - 388	en_US
dc.identifier.issn	0167-577X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/13042
dc.description.abstract	Fe-doped ZnO was successfully fabricated by thermal in-diffusion of Fe into ZnO crystals. X-ray absorption near edge structure (XANES), photoemission and cathodoluminescence (CL) spectroscopy have been combined to examine the Fe diffusion and its effects on the electronic and optical properties of the crystal. Depth-resolved CL demonstrates that Fe in-diffusion occurs to at least 4 μm depth and results in intense green luminescence, whereas the undoped crystal exhibits only the ZnO near-band-edge emission. XANES and valence-band photoemission show that Fe is incorporated as Fe2+/3+ ions on substitutional Zn sites. The results suggest that the variation in the CL properties is due to a change in the oxygen vacancy charge state as a result of electron transfer from Fe. Crown Copyright © 2009.	en_US
dc.relation.ispartof	Materials Letters	en_US
dc.relation.isbasedon	10.1016/j.matlet.2009.11.024	en_US
dc.subject.classification	Materials	en_US
dc.title	Diffusion synthesis and electronic properties of Fe-doped ZnO	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	64	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	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	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	64	en_US

Abstract:

Fe-doped ZnO was successfully fabricated by thermal in-diffusion of Fe into ZnO crystals. X-ray absorption near edge structure (XANES), photoemission and cathodoluminescence (CL) spectroscopy have been combined to examine the Fe diffusion and its effects on the electronic and optical properties of the crystal. Depth-resolved CL demonstrates that Fe in-diffusion occurs to at least 4 μm depth and results in intense green luminescence, whereas the undoped crystal exhibits only the ZnO near-band-edge emission. XANES and valence-band photoemission show that Fe is incorporated as Fe2+/3+ ions on substitutional Zn sites. The results suggest that the variation in the CL properties is due to a change in the oxygen vacancy charge state as a result of electron transfer from Fe. Crown Copyright © 2009.

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http://hdl.handle.net/10453/13042