Luminescence of F and F+ centers in corundum upon excitation in the interval from 4 to 40 eV / Surdo AI,Kortov VS,Pustovarov VA // RADIATION MEASUREMENTS. - 2001. - V. 33, l. 5. - P. 587-591.

ISSN/EISSN:

1350-4487 / нет данных

Type:

Article; Proceedings Paper

Abstract:

Time-resolved excitation spectra of luminescence from F+- and F-centers in alpha -Al2O3 were analyzed with subnanosecond resolution in the interval from 4 to 40 eV at different orientations of the C-3 optical axis relative to the intensity vector of an electric field E of the exciting light. A new excited state of the F+-center near 6 eV was examined. The time-resolved excitation spectra had a doublet structure at the edge of the fundamental absorption. The structure was interpreted as the manifestation of a Frenkel exciton. It was found that the luminescence decay kinetics of F+-centers changed considerably with increasing excitation energy (E greater than or equal to E-g, where E-g is the band gap energy). (C) 2001 Elsevier Science Ltd. All rights reserved.

Author keywords:

luminescence; excitation spectra; kinetics; excitons OPTICAL-PROPERTIES; ALPHA-AL2O3; AL2O3; CRYSTALS; SAPPHIRE

DOI:

10.1016/S1350-4487(01)00064-6

Web of Science ID:

ISI:000170916000024

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Note	4th European Conference on Luminescent Detectors and Transformers of Ionizing Radiation (LUMDETR 2000), RIGA, LATVIA, AUG 14-17, 2000
Organization	European Commiss; Council Sci Latvia
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
Keywords-Plus	OPTICAL-PROPERTIES; ALPHA-AL2O3; AL2O3; CRYSTALS; SAPPHIRE
Research-Areas	Nuclear Science \& Technology
Web-of-Science-Categories	Nuclear Science \& Technology
Number-of-Cited-References	17
Usage-Count-Since-2013	3
Journal-ISO	Radiat. Meas.
Doc-Delivery-Number	471EU