Cathodoluminescence of iodine dimers in KCl:I crystals

被引：0
|
作者：
V. I. Korepanov
S. S. Vil’chinskaya
V. M. Lisitsyn
M. F. Kuznetsov
机构：
[1] Tomsk Polytechnical University,
来源：
Optics and Spectroscopy | 2005年 / 98卷
关键词：
Spectroscopy; Iodine; Decay Time; Time Resolution; Strong Band;
D O I：
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中图分类号：
学科分类号：
摘要：
Radiative characteristics of localized exciton states in a KCl:I crystal have been studied in the temperature range 27–200 K by pulsed optical spectroscopy with nanosecond-range time resolution. Besides the bands investigated earlier in KCl:I crystals at impurity concentrations above 0.1 mol %, a strong band peaked at 3.8 eV was detected. The temperature dependences of the decay times, amplitude values of the intensity, and light sums of the 3.8-and 3.4-eV bands were studied. These bands are shown to originate from radiative decay of localized excitons bound to the impurity dimers.
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页码：401 / 404
页数：3
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