Low-temperature luminescence of lead silicate glass / Zatsepin A. F.,Kukharenko A. I.,Buntov E. A.,Pustovarov V. A.,Cholakh S. O. // GLASS PHYSICS AND CHEMISTRY. - 2010. - V. 36, l. 2. - P. 166-170.

ISSN/EISSN:

1087-6596 / нет данных

Type:

Article

Abstract:

The temperature quenching of intrinsic luminescence of a lead silicate glass of the 20PbO center dot 80SiO(2) composition has been investigated in the temperature range 7-200 K. It has been found that the temperature behavior of the intensity of intrinsic luminescence does not obey the well-known Mott's law for intracenter quenching of luminescence but is adequately described by the empirical Street's formula. It has been demonstrated that, with allowance made for the disorder of the atomic structure, the experimental temperature dependence of the luminescence intensity of the glass can be represented as a superposition of Mott's dependences for an ensemble of local luminescence centers. The obtained distribution of luminescence centers over the activation energies of quenching has an asymmetric form with prevailing low-energy states. It has been assumed that this feature has a general character and, at low temperatures, determines the specificity of the processes of nonradiative relaxation of the electronic subsystem for many oxide glasses.

Author keywords:

luminescence; temperature quenching; Street's law; structural disorder; energy distribution of luminescence centers; photoexcitation relaxation PHOTO-LUMINESCENCE; DEPENDENCE; EMISSION; STATES

DOI:

10.1134/S1087659610020033

Web of Science ID:

ISI:000277139600003

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	PHOTO-LUMINESCENCE; DEPENDENCE; EMISSION; STATES
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Ceramics
Author-Email	zats@dpt.ustu.ru
ResearcherID-Numbers	Zatsepin, Anatoly/L-7335-2016 Buntov, Evgeny/F-8760-2010 Cholakh, Seif/M-8221-2016 Kukharenko, Andrey/M-8256-2016
ORCID-Numbers	Zatsepin, Anatoly/0000-0001-9539-2403 Buntov, Evgeny/0000-0003-3255-9039 Cholakh, Seif/0000-0002-9313-6614 Kukharenko, Andrey/0000-0003-3774-6909
Funding-Acknowledgement	Russian Foundation for Basic Research {[}09-02-00493, 08-02-01072]
Funding-Text	This study was supported by the Russian Foundation for Basic Research (project nos. 09-02-00493 and 08-02-01072).
Number-of-Cited-References	11
Usage-Count-Since-2013	8
Journal-ISO	Glass Phys. Chem.
Doc-Delivery-Number	589IE