About: Thermoluminescence of Chromium Doped Cd2Nb2O7 Crystals

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The exposure of the Cd2Nb2O7:Cr crystal to monochromatic light with the wavelength shorter than 600 nm at 12 K decreases the Cr3+ photoluminescence emission and allows us to observe thermoluminescence within 60 - 200 K during subsequent heating of the crystal at a rate of 0.077 K/s. The glow curve of thermoluminescence revealed a rather complex structure with two pronounced intensive glow peaks at 91 and 180 K and four rather weak peaks at 99, 117, 132, and 155 K. An analysis of the glow peaks by %22an initial rise%22 gave evidence of many various charge carrier traps with the activation energies from 150 to 470 meV. Since a comparison of the thermoluminescence and photoluminescence emission spectra showed that these spectra are identical, it was concluded that the thermoluminescence glow peaks are associated with thermal release of charge carriers from shallow traps followed by Cr4+ Ž Cr3+(2E) and/or Cr2+ Ž Cr3+(2E) charge capture and 2E Ž 4A2 radiative decay of Cr3+(2E) ions. The exposure of the Cd2Nb2O7:Cr crystal to monochromatic light with the wavelength shorter than 600 nm at 12 K decreases the Cr3+ photoluminescence emission and allows us to observe thermoluminescence within 60 - 200 K during subsequent heating of the crystal at a rate of 0.077 K/s. The glow curve of thermoluminescence revealed a rather complex structure with two pronounced intensive glow peaks at 91 and 180 K and four rather weak peaks at 99, 117, 132, and 155 K. An analysis of the glow peaks by %22an initial rise%22 gave evidence of many various charge carrier traps with the activation energies from 150 to 470 meV. Since a comparison of the thermoluminescence and photoluminescence emission spectra showed that these spectra are identical, it was concluded that the thermoluminescence glow peaks are associated with thermal release of charge carriers from shallow traps followed by Cr4+ Ž Cr3+(2E) and/or Cr2+ Ž Cr3+(2E) charge capture and 2E Ž 4A2 radiative decay of Cr3+(2E) ions. (en)
Title	Thermoluminescence of Chromium Doped Cd2Nb2O7 Crystals Thermoluminescence of Chromium Doped Cd2Nb2O7 Crystals (en)
skos:prefLabel	Thermoluminescence of Chromium Doped Cd2Nb2O7 Crystals Thermoluminescence of Chromium Doped Cd2Nb2O7 Crystals (en)
skos:notation	RIV/68407700:21340/03:04092682!RIV/2004/MSM/213404/N
http://linked.open.../vavai/riv/strany	101 ; 104
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 210000022)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Potůček, Zdeněk Bryknar, Zdeněk Ptáček, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta jaderná a fyzikálně inženýrská
http://linked.open...dnocenehoVysledku	630945
http://linked.open...ai/riv/idVysledku	RIV/68407700:21340/03:04092682
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Cd2Nb2O7, Chromium impurity, Photoluminescence, Thermoluminescence (en)
http://linked.open.../riv/klicoveSlovo	Photoluminescence Cd2Nb2O7 Thermoluminescence Chromium impurity
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[513D10678642]
http://linked.open...i/riv/nazevZdroje	Radiation Effects and Defects in Solids
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	158
http://linked.open...iv/tvurceVysledku	Bryknar, Zdeněk Potůček, Zdeněk Ptáček, Pavel Trepakov, V.
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20210000022
issn	1042-0150
number of pages	4 (xsd:int)
http://localhost/t...ganizacniJednotka	21340

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