Luminescence of potassium sulphate crystals activated by Sn2+ ions

T.A. Koketai, Ainura Tussupbekova, А.S. Baltabekov, Elmira Mussenova

2017

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DOI 10.1088/1742-6596/830/1/012150
Data confidence 70 medium
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Abstract

The aim of this paper is to study some spectral-luminescent properties of sulphates activated by tin ions. The paper presents the photoluminescence excitation spectra of K 2 SO 4 -Sn 2+ crystal. In this spectrum, peaks are observed at 240 nm and 260 nm. In the long-wavelength wing, the emission band has a "shoulder" indicating the presence of the second emission band. Thus, the presence of two bands of photoluminescence excitation suggests that K 2 SO 4 formed two types of the impurity luminescence center differing in the immediate surroundings.