Optical emission due to ionic displacements in alkaline earth titanates

Cooper, R; Smith, KL; Colella, M; Vance, ER; Phillips, M

Optical emission due to ionic displacements in alkaline earth titanates

Cooper, R Smith, KL Colella, M Vance, ER Phillips, M

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Publication Type:: Journal Article
Citation:: Journal of Nuclear Materials, 2001, 289 (1-2), pp. 199 - 203
Issue Date:: 2001-01-01

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Field	Value	Language
dc.contributor.author	Cooper, R	en_US
dc.contributor.author	Smith, KL	en_US
dc.contributor.author	Colella, M	en_US
dc.contributor.author	Vance, ER	en_US
dc.contributor.author	Phillips, M https://orcid.org/0000-0003-1522-9281	en_US
dc.date.issued	2001-01-01	en_US
dc.identifier.citation	Journal of Nuclear Materials, 2001, 289 (1-2), pp. 199 - 203	en_US
dc.identifier.issn	0022-3115	en_US
dc.identifier.uri	http://hdl.handle.net/10453/4254
dc.description.abstract	Optical emission spectra in the 300-700 nm range were collected from single crystal CaTiO3, SrTiO3 and BaTiO3, and polycrystalline CaTiO3 samples, that were irradiated at room temperature using a Febetron 706 variable energy pulsed-electron-beam generator. The long-lived emissions (up to microseconds after the electron pulse) consist of broad (halfwidths to approximately 100 nm) bands centred around 380, 425, and 445 nm for CaTiO3, SrTiO3 and BaTiO3, respectively. These emission bands are similar to cathodoluminescence emissions from 25 keV electron irradiation attributed by others to direct conduction-valence band transitions in unreduced samples and oxygen vacancies in reduced samples. CaTiO3, SrTiO3 and BaTiO3 all have emission thresholds of 0.26±0.02 MeV. This corresponds to a threshold displacement energy for oxygen, Ed of 45±4 eV.	en_US
dc.relation.ispartof	Journal of Nuclear Materials	en_US
dc.relation.isbasedon	10.1016/S0022-3115(00)00698-X	en_US
dc.subject.classification	Energy	en_US
dc.title	Optical emission due to ionic displacements in alkaline earth titanates	en_US
dc.type	Journal Article
utslib.citation.volume	1-2	en_US
utslib.citation.volume	289	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0204 Condensed Matter Physics	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	1-2	en_US
pubs.publication-status	Published	en_US
pubs.volume	289	en_US

Abstract:

Optical emission spectra in the 300-700 nm range were collected from single crystal CaTiO3, SrTiO3 and BaTiO3, and polycrystalline CaTiO3 samples, that were irradiated at room temperature using a Febetron 706 variable energy pulsed-electron-beam generator. The long-lived emissions (up to microseconds after the electron pulse) consist of broad (halfwidths to approximately 100 nm) bands centred around 380, 425, and 445 nm for CaTiO3, SrTiO3 and BaTiO3, respectively. These emission bands are similar to cathodoluminescence emissions from 25 keV electron irradiation attributed by others to direct conduction-valence band transitions in unreduced samples and oxygen vacancies in reduced samples. CaTiO3, SrTiO3 and BaTiO3 all have emission thresholds of 0.26±0.02 MeV. This corresponds to a threshold displacement energy for oxygen, Ed of 45±4 eV.

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http://hdl.handle.net/10453/4254