Energy dependence of radioluminescence spectra from strontium titanate
Abstract
Abstract X-ray excited luminescence spectra of strontium titanate are reported over the temperature range from 20-300 K. The range includes several crystalline phases, each with different emission spectra. The signals are thermally quenched above ~220 K. There are spectral shifts and intensity changes around the temperatures associated with phase changes and overall there are nominally three spectral emission bands. A remarkable observation is that at fixed lower temperatures the spectra undergo major changes with the energy of the X-rays. A possible cause of the effect is discussed in terms of inner shell excitation from the K shell of the strontium. Comparisons with thermoluminescence spectra from the strontium titanate are reported.
Citation
Wang , Y , Zhao , Y , Zhang , Z , Zhao , C , Wu , X , Finch , A A & Townsend , P D 2015 , ' Energy dependence of radioluminescence spectra from strontium titanate ' , Journal of Luminescence , vol. 166 , pp. 17-21 . https://doi.org/10.1016/j.jlumin.2015.04.046
Publication
Journal of Luminescence
Status
Peer reviewed
ISSN
0022-2313Type
Journal article
Collections
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