ON THE ORIGIN OF P-TYPE CONDUCTIVITY IN AMORPHOUS CHALCOGENIDES

Authors
KOLOBOV AV
Citation
Av. Kolobov, ON THE ORIGIN OF P-TYPE CONDUCTIVITY IN AMORPHOUS CHALCOGENIDES, Journal of non-crystalline solids, 200, 1996, pp. 728-731
Citations number
18
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of non-crystalline solids → ACNP
ISSN journal
00223093
Volume
200
Year of publication
1996
Part
2
Pages
728 - 731
Database
ISI
SICI code
0022-3093(1996)200:<728:OTOOPC>2.0.ZU;2-#
Abstract
An explanation for p-type conductivity in amorphous chalcogenides is g iven based on the role played by lone-pair electrons and charged defec ts. Valency alternation results in thermal excitation of free holes wh ile free electrons are not created. Neutral dangling bonds are also a source of free holes. Existence of three-fold coordinated sites also e xplains the anomaly of the Hall effect in amorphous chalcogenides.