Thermoluminescence kinetics of oxygen-related centers in AlN single crystals / Weinstein I. A.,Vokhmintsev A. S.,Spiridonov D. M. // DIAMOND AND RELATED MATERIALS. - 2012. - V. 25, l. . - P. 59-62.

ISSN/EISSN:

0925-9635 / нет данных

Type:

Article; Proceedings Paper

Abstract:

Excitation and emission spectra of thermoluminescence (TL) in bulk aluminum nitride single crystals irradiated by UV have been studied. TL has been found to be most effectively excited by the 5.04 eV photons. The 3.44 eV band caused by recombination processes with oxygen-vacancy (V-Al-O-N)-centers dominates in the TL spectrum. Besides, the 2.91 and 2.0 eV emissions have been also observed. The TL mechanisms have been quantitatively analyzed in terms of formal kinetics of general order. On the basis of the obtained values and from their comparison with literature data it has been concluded that the main traps of charge carriers, responsible for the TL peak at 470 K, are formed by the V-N vacancy. To interpret the observed regularities, the model of TL has been proposed, which satisfactorily agrees with independent data for thermally and optically stimulated processes in aluminum nitride. (C) 2012 Elsevier B.V. All rights reserved.

Author keywords:

Aluminum nitride; Optical properties; Termally stimulated luminescence; General order kinetics; Oxygen impurity; Nitrogen vacancy ALUMINUM NITRIDE; LUMINESCENCE; IDENTIFICATION; CERAMICS; DEFECT; EPR

DOI:

10.1016/j.diamond.2012.02.004

Web of Science ID:

ISI:000304736900013

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Note	22nd European Conference on Diamond, Diamond-Like Materials, Carbon Nanotubes and Nitrides, Budapest, HUNGARY, 2011
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
Keywords-Plus	ALUMINUM NITRIDE; LUMINESCENCE; IDENTIFICATION; CERAMICS; DEFECT; EPR
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Author-Email	i.a.weinstein@ustu.ru
ResearcherID-Numbers	Weinstein, Ilya/K-8178-2012
ORCID-Numbers	Weinstein, Ilya/0000-0002-5573-7128
Number-of-Cited-References	26
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	42
Journal-ISO	Diam. Relat. Mat.
Doc-Delivery-Number	951RE