Mechanisms of enhancement of light emission in nanostructures of II-VI compounds doped with manganese

Godlewski, M; Yatsunenko, S; Ivanov, VY; Drozdowicz-Tomsia, K; Goldys, EM; Phillips, MR; Klar, PJ; Heimbrodt, W

Mechanisms of enhancement of light emission in nanostructures of II-VI compounds doped with manganese

Godlewski, M Yatsunenko, S Ivanov, VY Drozdowicz-Tomsia, K Goldys, EM Phillips, MR

Klar, PJ Heimbrodt, W

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Publication Type:: Journal Article
Citation:: Low Temperature Physics, 2007, 33 (2), pp. 192 - 196
Issue Date:: 2007-01-01

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Field	Value	Language
dc.contributor.author	Godlewski, M	en_US
dc.contributor.author	Yatsunenko, S	en_US
dc.contributor.author	Ivanov, VY	en_US
dc.contributor.author	Drozdowicz-Tomsia, K	en_US
dc.contributor.author	Goldys, EM	en_US
dc.contributor.author	Phillips, MR https://orcid.org/0000-0003-1522-9281	en_US
dc.contributor.author	Klar, PJ	en_US
dc.contributor.author	Heimbrodt, W	en_US
dc.date.issued	2007-01-01	en_US
dc.identifier.citation	Low Temperature Physics, 2007, 33 (2), pp. 192 - 196	en_US
dc.identifier.issn	1063-777X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/404
dc.description.abstract	Intra-shell transitions of transition metal and rare earth ions are parity forbidden processes. For Mn2+ ions this is also a spin forbidden process, i.e., light emission should be inefficient. Surprisingly, it has been reported that in nanostructures of ZnMnS the T14 to A16 intra-shell transition of Mn2+ results in a bright photoluminescence characterized by a short PL decay time. The model of a quantum confined atom was introduced to explain the observed experimental results. It was later claimed that this model is incorrect. Based on the results of our photoluminescence, photoluminescence kinetics, time-resolved photoluminescence, electron spin resonance, and optically detected magnetic resonance investigations, we confirm photoluminescence enhancement and decrease of photoluminescence lifetime and relate these effects to spin dependent magnetic interactions between localized spins of Mn2+ ions and spins/magnetic moments of free carriers. This mechanism is active in both bulk and in low-dimensional structures, but is significantly enhanced in nanostructure samples. © 2007 American Institute of Physics.	en_US
dc.relation.ispartof	Low Temperature Physics	en_US
dc.relation.isbasedon	10.1063/1.2718539	en_US
dc.subject.classification	General Physics	en_US
dc.title	Mechanisms of enhancement of light emission in nanostructures of II-VI compounds doped with manganese	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	33	en_US
utslib.for	0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics	en_US
utslib.for	0105 Mathematical Physics	en_US
utslib.for	0204 Condensed Matter Physics	en_US
dc.location.activity	Kyshtym, RUSSIA
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	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	33	en_US

Abstract:

Intra-shell transitions of transition metal and rare earth ions are parity forbidden processes. For Mn2+ ions this is also a spin forbidden process, i.e., light emission should be inefficient. Surprisingly, it has been reported that in nanostructures of ZnMnS the T14 to A16 intra-shell transition of Mn2+ results in a bright photoluminescence characterized by a short PL decay time. The model of a quantum confined atom was introduced to explain the observed experimental results. It was later claimed that this model is incorrect. Based on the results of our photoluminescence, photoluminescence kinetics, time-resolved photoluminescence, electron spin resonance, and optically detected magnetic resonance investigations, we confirm photoluminescence enhancement and decrease of photoluminescence lifetime and relate these effects to spin dependent magnetic interactions between localized spins of Mn2+ ions and spins/magnetic moments of free carriers. This mechanism is active in both bulk and in low-dimensional structures, but is significantly enhanced in nanostructure samples. © 2007 American Institute of Physics.

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http://hdl.handle.net/10453/404