Energy dependence of radioluminescence spectra from strontium titanate

Title: Energy dependence of radioluminescence spectra from strontium titanate
Creator: Wang, Y.; Zhao, Y.; Zhang, Z.; Zhao, C.; Wu, X.; Finch, A. A.; Townsend, P. D.
Relation: Journal of Luminescence Vol. 166, p. 17-21
Publisher Link: http://dx.doi.org/10.1016/j.jlumin.2015.04.046
Publisher: Elsevier
Resource Type: journal article
Date: 2015
Description: X-ray excited luminescence spectra of strontium titanate are reported over the temperature range from 20 to 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.
Subject: radio luminescence; SrTiO₃; low temperature phase changes; x-ray energy dependence
Identifier: http://hdl.handle.net/1959.13/1331845
Identifier: uon:26723
Identifier: ISSN:0022-2313
Language: eng
Reviewed

		Thumbnail	File	Description	Size	Format