Kinetics of thermally stimulated luminescence from alkaline earth borates

• Published in: Journal of luminescence Vol. 109; no. 2; pp. 69 - 74
• Main Authors: Sangeeta, Sabharwal, S.C
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.08.2004; Elsevier
• Subjects: Alkaline earth borates; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Kinetics; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Other luminescence and radiative recombination; Physics; Thermally stimulated luminescence; Thermoluminescence; Thermally stimulated luminescence; Alkaline earth borates; Kinetics; Inorganic compounds; Thermostimulated emission; Experimental study; Borates; Thermoluminescence
• ISSN: 0022-2313; 1872-7883
• DOI: 10.1016/j.jlumin.2004.01.089

The kinetics of thermally stimulated emission (TSL) from XB 2O 4 (X= Ca, Sr, Ba) has been investigated employing both isothermal decay and peak shape analysis methods. For BaB 2O 4 the emission was observed to lie in the visible region and the kinetics of TSL emission could be determined without any ambiguity. However, the emission spectra of CaB 2O 4 and SrB 2O 4 were found to consist of two broad emissions: one in the UV and the other in the blue green regions. Consequent to the presence of two emission bands, the determination of TSL kinetics required collection of TSL data for the two components of emission separately. Otherwise, an unambiguous determination of the TSL kinetics just could not be possible. The kinetics of TSL emission for the three borates is found to be of second order.