ELECTRONIC STATES SPECTRUM FOR LEAD SILICATE-GLASSES WITH DIFFERENT SHORT-RANGE ORDER STRUCTURES / GUBANOV VA,ZATSEPIN AF,KORTOV VS,NOVIKOV DL,FREIDMAN SP,CHERLOV GB,SHCHAPOVA UV // JOURNAL OF NON-CRYSTALLINE SOLIDS. - 1991. - V. 127, l. 3. - P. 259-266.

ISSN/EISSN:

0022-3093 / нет данных

Type:

Article

Abstract:

Molecular orbital (MO) linear combination of atomic orbitals (LCAO) simulation of the electronic states spectra of PbO-SiO2 glass with different structures of short-range order is performed. It is determined that superposing of `almost free' Pb2+ ion levels on silicon-oxygen spectrum takes place in low-lead glass, whereas high-lead glasses are characterized by mixing of Pb and O atoms valency states. Density-of-states peaks in X-ray photoelectron spectra and optical Pb6s --> Pb6p transition with 5.2-3.0 eV energy as a function of Pb structural role are identified. The most probable radiation centers in PbO-SiO2 glasses are the analogues of known E- and H+ centers formed on the band energies edges as a result of electron-hole localization = Si-O-...Pb2+ fragments.

Author keywords:

нет данных

DOI:

10.1016/0022-3093(91)90478-O

Web of Science ID:

ISI:A1991FE96400004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	FEB
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Ceramics; Materials Science, Multidisciplinary
ResearcherID-Numbers	Zatsepin, Anatoly/L-7335-2016
ORCID-Numbers	Zatsepin, Anatoly/0000-0001-9539-2403
Number-of-Cited-References	26
Usage-Count-Since-2013	4
Journal-ISO	J. Non-Cryst. Solids
Doc-Delivery-Number	FE964