Time-resolved luminescent VUV spectroscopy of F- and F+-centres in single BeO crystals / Pustovarov VA,Ivanov VY,Kirm M,Korotaev AV,Kruzhalov AV,Zimmerer G,Zinin EI // NUCLEAR INSTRUMENTS \& METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. - 2001. - V. 470, l. 1-2. - P. 353-357.

ISSN/EISSN:

0168-9002 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The time-resolved photoluminescence spectra in the energy region of 2.0-6.0 eV, as well as the excitation spectra (4.0-35.0 eV) and the decay kinetics of luminescence (the time region of 0.2-500 ns) were studied for F- and F+-centres in beryllium oxide crystals at T = 10 and 295 K using selective vacuum ultraviolet excitation. The synchrotron radiation from the storage ring DORIS was used. The aim of the present work was to investigate and compare the stoichiometric BeO crystals with anion-imperfection samples. F- and F+-centres performed the role a of luminescent probe in a crystal lattice. The efficiency of energy transfer to F- and F+-centres was investigated on this basis. The role of the electron-hole and exciton mechanisms of energy transfer in BeO crystals and their dependence on temperature were determined. The photoconversion F+ --> F was found using time-resolved spectroscopy methods. A comparison of emission properties of F- and F+-centres in BeO and alpha -Al2O3 crystals was made. (C) 2001 Elsevier Science B.V. All rights reserved.

Author keywords:

F-centre; photoluminescence; time-resolved spectroscopy; synchrotron radiation SYNCHROTRON RADIATION; BERYLLIUM-OXIDE; EXCITATIONS; CENTERS

DOI:

10.1016/S0168-9002(01)01051-8

Web of Science ID:

ISI:000170979000074

Соавторы в МНС:

Другие поля

Поле	Значение
Month	SEP 1
Note	13th Conference on National Synchrotron Radiation, NOVOSIBIRSK, RUSSIA, JUL 17-21, 2000
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	SYNCHROTRON RADIATION; BERYLLIUM-OXIDE; EXCITATIONS; CENTERS
Research-Areas	Instruments \& Instrumentation; Nuclear Science \& Technology; Physics
Web-of-Science-Categories	Instruments \& Instrumentation; Nuclear Science \& Technology; Physics, Nuclear; Physics, Particles \& Fields
ResearcherID-Numbers	Kirm, Marco/M-1533-2016
ORCID-Numbers	Kirm, Marco/0000-0002-1833-6894
Number-of-Cited-References	12
Usage-Count-Since-2013	3
Journal-ISO	Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip.
Doc-Delivery-Number	472HX