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Neutron irradiation defects in gallium sulfide : Optical absorption measurements

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Neutron irradiation defects in gallium sulfide : Optical absorption measurements

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dc.contributor.author Manjón Herrera, Francisco Javier
dc.contributor.author Segura García del Río, Alfredo
dc.contributor.author Muñoz Sanjosé, Vicente
dc.date.accessioned 2010-06-08T10:00:04Z
dc.date.available 2010-06-08T10:00:04Z
dc.date.issued 1997
dc.identifier.citation MANJÓN, F.J. ; SEGURA, A. ; MUÑOZ, V. Neutron irradiation defects in gallium sulfide: Optical absorption measurements. En: Journal of Applied Physics, 1997, vol. 81, no. 10 en
dc.identifier.uri http://hdl.handle.net/10550/12873
dc.description.abstract Gallium sulfide single crystals have been irradiated with different thermal neutron doses. Defects introduced by neutron irradiation turn out to be optically active, giving rise to absorption bands with energies ranging from 1.2 to 3.2 eV. Bands lying in the band-gap exhibit Gaussian shape. Their energies and widths are independent of the irradiation dose, but their intensities are proportional to it. Thermal annealing is completed in two stages, ending at around 500 and 720 K, respectively. Centers responsible for the absorption bands are proposed to be gallium-vacancy-galliuminterstitial complexes in which the distance between the vacancy (acceptor) and the interstitial (donor) determines the energy and intensity of the absorption band, as well as the annealing temperature. en_US
dc.language.iso en en
dc.subject Gallium Compounds ; III-VI Semiconductors ; Neutron Effects ; Defect Absorption Spectra ; Energy Gap ; Vacancies (Crystal) ; Interstitials ; Annealing ; Visible Spectra en
dc.title Neutron irradiation defects in gallium sulfide : Optical absorption measurements en
dc.type journal article es_ES
dc.subject.unesco UNESCO::FÍSICA en
dc.identifier.doi 10.1063/1.365204 en
dc.type.hasVersion VoR es_ES
dc.identifier.url http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JAPIAU000081000010006651000001&idtype=cvips&prog=normal&doi=10.1063/1.365204 en

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