Spectral-kinetics properties of activator emission centers in CsI:Eu

Spectral-kinetics properties of activator emission centers in CsI:Eu

Dades bibliogràfiques
Parent link:Journal of Luminescence
Vol. 144.— 2013.— [P. 146-148]
Autor corporatiu: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра сильноточной электроники (СЭ)
Altres autors: Yakovlev V. Yu. Viktor Yurjevich, Trefilova L. N. Larisa Nikolaevna, Karnaukhova A. A. Anna Alekseevna, Ovcharenko N. N. Nikolay Nikolaevich
Sumari:Title screen
It has been found that only three types of emission centers are responsible for bands at 2.69, 2.78 and 2.67 eV in CsI:Eu crystals grown in vacuum. Within the framework of a suggested model a single dipole Eu2+-vc− is responsible for 2.69 eV band, a two-dipole cluster 2(Eu2+-vc−) for 2.78 eV band and a three-dipole cluster 3(Eu2+-vc−) for 2.67 eV band. The emission at 2.69 and 2.67 eV decays exponentially with time constant 0.42 and 0.9 μs, respectively. The decay kinetics of the emission at 2.78 eV has two exponential components with time constant 0.15 and 0.51 μs. It has been experimentally ascertained that the single dipole, two-dipole and three dipole clusters exist at Eu concentration less than 0.01 mass%; from 0.005 to 0.03 mass% and more than 0.03 mass%, respectively.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:anglès
Publicat: 2013
Matèries:
электронный ресурс
труды учёных ТПУ
люминесценция
фотолюминесценция
Accés en línia:http://dx.doi.org/10.1016/j.jlumin.2013.06.045
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652819

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