Peculiarities of intrinsic luminescence excited by pulsed electron beam in CsI and CsI:CO3

Peculiarities of intrinsic luminescence excited by pulsed electron beam in CsI and CsI:CO3

Bibliographic Details
Parent link:Journal of Luminescence: Scientific Journal.— , 1970-
Vol. 190.— 2017.— [P. 267-271]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра высоковольтной электрофизики и сильноточной электроники (ВЭСЭ)
Other Authors: Yakovlev V. Yu. Viktor Yurjevich, Trefilova L. N. Larisa Nikolaevna, Lebedinsky A. M. Aleksey Mikhaylovich, Karnaukhova A. A. Anna Alekseevna, Alekseev V. D. Vadim Dmitrievich
Summary:Title screen
The spectra and decay kinetics of STE luminescence arising under a pulsed electron beam (Еex=0.25 MeV, t1/2=15 ns, W=3 mJ/cm2) in CsI and CsI:8.3·10–3CO3 mol% within a temperature range of 80 K÷ 450 K, are examined. It is found that carbonate ions cause a drastic shortening of the intrinsic luminescence decay time at room temperature. The observed distinction in the UV-luminescence decay kinetics of CsI and CsI:CO3 is due to different temperature behavior of the decay time Tslow in the slow stage of the exponential decay kinetics at temperatures above 200 K. The presented results are interpreted in terms of the existence of “off-center” excitons with different structure morphology in CsI lattice.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2017
Subjects:
электронный ресурс
труды учёных ТПУ
люминесценция
особенности
возбуждение импульсов
электронные пучки
кристаллы
CsI
Online Access:http://dx.doi.org/10.1016/j.jlumin.2017.05.044
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=655206
Description
Summary:Title screen
The spectra and decay kinetics of STE luminescence arising under a pulsed electron beam (Еex=0.25 MeV, t1/2=15 ns, W=3 mJ/cm2) in CsI and CsI:8.3·10–3CO3 mol% within a temperature range of 80 K÷ 450 K, are examined. It is found that carbonate ions cause a drastic shortening of the intrinsic luminescence decay time at room temperature. The observed distinction in the UV-luminescence decay kinetics of CsI and CsI:CO3 is due to different temperature behavior of the decay time Tslow in the slow stage of the exponential decay kinetics at temperatures above 200 K. The presented results are interpreted in terms of the existence of “off-center” excitons with different structure morphology in CsI lattice.
Режим доступа: по договору с организацией-держателем ресурса
DOI:10.1016/j.jlumin.2017.05.044

Similar Items