POLARIZATION AND DEPOLARIZATION IN SILICA BY MIGRATION OF ELECTRIC CHARGE-CARRIERS

Authors
BARLAND M DUVAL E ACHIBAT T BOUKENTER A
Citation
M. Barland et al., POLARIZATION AND DEPOLARIZATION IN SILICA BY MIGRATION OF ELECTRIC CHARGE-CARRIERS, Radiation effects and defects in solids, 137(1-4), 1995, pp. 1417-1424
Citations number
11
Categorie Soggetti
Physics, Condensed Matter","Nuclear Sciences & Tecnology
Journal title
Radiation effects and defects in solids → ACNP
ISSN journal
10420150
Volume
137
Issue
1-4
Year of publication
1995
Pages
1417 - 1424
Database
ISI
SICI code
1042-0150(1995)137:1-4<1417:PADISB>2.0.ZU;2-0
Abstract
A thermally stimulated depolarization current was measured in pure sil ica glasses and crystalline quartz, after a linear temperature increas e under applied electric field, up to 520 K. The depolarization peak a t 480 K disappeared after UV illumination at room temperature. A negat ive depolarization current was observed in silica glasses after polari zation by an electric field under UV illumination at room temperature. There exist two different types of dipoles which are electron-hole pa irs, in which electron and hole are trapped on two different defects r espectively.