Effects of structural disorder and Urbach's rule in binary lead silicate glasses / Weinstein IA,Zatsepin AF,Kortov VS // JOURNAL OF NON-CRYSTALLINE SOLIDS. - 2001. - V. 279, l. 1. - P. 77-87.

ISSN/EISSN:

0022-3093 / нет данных

Type:

Article

Abstract:

The behavior of optical spectra of PbO-SiO2 glasses with different concentrations of lead near the UV absorption edge was analyzed at temperatures from 80 to 470 K. A generalized formulation of modified Urbach's rule (MUR), which is applicable to glassy materials within a broad temperature interval, was proposed for interpretation of the experimental spectral dependences. The effective energy of phonons responsible for the temperature shift of the Urbach edge was calculated in terms of the approach used. It was shown that spectral and temperature parameters of MUR are structure-sensitive and their concentration behavior reflects the change in the type of short-range order in the glassy matrix. (C) 2001 Elsevier Science B.V. All rights reserved.

Author keywords:

TEMPERATURE-DEPENDENCE; AMORPHOUS-SILICON; ELECTRONIC STATES; LOCALIZED STATES; ABSORPTION EDGE; BAND-GAP; EMISSION; SPECTRUM; SOLIDS; ENERGY

DOI:

10.1016/S0022-3093(00)00396-3

Web of Science ID:

ISI:000166327200009

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	TEMPERATURE-DEPENDENCE; AMORPHOUS-SILICON; ELECTRONIC STATES; LOCALIZED STATES; ABSORPTION EDGE; BAND-GAP; EMISSION; SPECTRUM; SOLIDS; ENERGY
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Ceramics; Materials Science, Multidisciplinary
ResearcherID-Numbers	Weinstein, Ilya/K-8178-2012 Zatsepin, Anatoly/L-7335-2016
ORCID-Numbers	Weinstein, Ilya/0000-0002-5573-7128 Zatsepin, Anatoly/0000-0001-9539-2403
Number-of-Cited-References	41
Usage-Count-Since-2013	10
Journal-ISO	J. Non-Cryst. Solids
Doc-Delivery-Number	390YK