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Proceedings Paper

Structural transformations caused in sulphate luminophors during thermal treatment
Author(s): S. G. Nedilko; O. V. Chukova; Yuri A. Hizhnii; V. I. Sheludko
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Paper Abstract

Presented work reports the results of luminescence investigation of thermal treatment influence on the spectral properties of sulphate crystals. The alkali sulphate polycrystalline samples, obtained after annealing and melting, reveal significant photoluminescence, that is not practically observed at the similar conditions for the respective single crystals. Besides, luminescence character depends on the thermal treatment conditions. Changes in the concentration of various type of defects in crystal matrix must be expected under annealing of sulphate crystals at the certain temperatures. Increasing of concentration of some defects creates possibility to their observation by luminescence method. We have investigated absorption, excitation, photo- and x-ray luminescence spectra of alkali sulphate single crystals and powders.

Paper Details

Date Published: 1 April 2003
PDF: 6 pages
Proc. SPIE 5024, Selected Papers on Optics and Photonics: Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, (1 April 2003); doi: 10.1117/12.497292
Show Author Affiliations
S. G. Nedilko, National Taras Shevchenko Univ. (Ukraine)
O. V. Chukova, National Taras Shevchenko Univ. (Ukraine)
Yuri A. Hizhnii, National Taras Shevchenko Univ. (Ukraine)
V. I. Sheludko, Glukhiv Pedagogical Institute (Ukraine)


Published in SPIE Proceedings Vol. 5024:
Selected Papers on Optics and Photonics: Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics
Sergey V. Svechnikov; Mikhail Ya. Valakh, Editor(s)

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