DOI: https://doi.org/10.30970/jps.02.371
IMPURITY CORE-VALENCE LUMINESCENCE AND DECAY OF THE CORE EXCITATIONS IN K1-xCsxCl AND Rb1-xCsxCl MIXED CRYSTALS
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Journal of Physical Studies 2(3), 371–375 (1998)
DOI: https://doi.org/10.30970/jps.02.371
IMPURITY CORE-VALENCE LUMINESCENCE AND DECAY OF THE CORE EXCITATIONS IN
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A. S. Voloshinovskii, V. B. Mikhailik, M. S. Mikhailik, G. B. Stryganyuk
The Ivan Franko State University of Lviv, Chair of Experimental Physics,
8 Kyrylo i Mefodii Str., Lviv, UA–290005, Ukraine
Spectral and decay characteristics of emission originating from radiative recombination of valence electrons with outermost $5p$Cs–core holes in K$_{1-x}$Cs$_x$Cl ($x=0.02 \div 0.20$) and Rb$_{1-x}$Cs$_x$Cl ($x=0.02 \div 0.18$) crystals are studied by means of time resolved luminescent spectroscopy methods using pulse $X$–ray and synchrotron excitation. The observed features of the emission excitation spectra, i.e. a substantial increase of the emission yielded in the $5p$Cs–core region and the spectrum structure in the range of excitation of $3p$K– and $4p$Rb–core states are discussed from the viewpoint of the peculiarities of radiative and Auger–decay processes of both the admixture and host core excitations.