Thermal- and photo-induced transformations of luminescence centers in alpha d-Al2O3 anion-defective crystals / Solov'ev S. V.,Milman I. I.,Syurdo A. I. // PHYSICS OF THE SOLID STATE. - 2012. - V. 54, l. 4. - P. 726-734.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

The thermal- and photo-induced transformations of luminescence centers in anion-defective crystals of alpha-Al2O3 have been investigated. It has been found that the exposure of crystals to ultraviolet light at temperatures in the range 50-900A degrees C leads to substantial changes in their thermoluminescence and radioluminescence spectra. According to the optical absorption and photoluminescence data, the detected F-type centers have been identified and the temperature ranges of the F -> F (+) -> F (2) transformations and their possible mechanisms have been determined. The special attention has been drawn to the detailed similarity in the formation of complex F (2)-type centers in the initially perfect alpha-Al2O3 crystals irradiated with fast neutrons and in the studied anion-defective crystals.

Author keywords:

OPTICAL-PROPERTIES; DEEP TRAPS; F+-CENTERS; ALPHA-AL2O3; PHOTOCONVERSION; SAPPHIRE; TLD-500; MODEL

DOI:

10.1134/S1063783412040270

Web of Science ID:

ISI:000302961900009

Соавторы в МНС:

Другие поля

Поле	Значение
Month	APR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	OPTICAL-PROPERTIES; DEEP TRAPS; F+-CENTERS; ALPHA-AL2O3; PHOTOCONVERSION; SAPPHIRE; TLD-500; MODEL
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	igor.milman@dpt.ustu.ru
Funding-Acknowledgement	Russian Foundation for Basic Research {[}10-08-96045]; Presidium of the Ural Branch of the Russian Academy of Sciences {[}11-2-39-UEMZ]
Funding-Text	This study was supported by the Russian Foundation for Basic Research (project no. 10-08-96045) and the Presidium of the Ural Branch of the Russian Academy of Sciences (project no. 11-2-39-UEMZ).
Number-of-Cited-References	22
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	26
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	928DT