ALTERNATING PHOTOCURRENTS AND MODULATED PHOTOCONDUCTIVITIES IN PHOTOREFRACTIVE SILLENITE CRYSTALS

Authors
GERWENS A BUSE K KRATZIG E
Citation
A. Gerwens et al., ALTERNATING PHOTOCURRENTS AND MODULATED PHOTOCONDUCTIVITIES IN PHOTOREFRACTIVE SILLENITE CRYSTALS, Ferroelectrics, 202(1-4), 1997, pp. 203-210
Citations number
12
Categorie Soggetti
Physics, Condensed Matter","Material Science
Journal title
Ferroelectrics → ACNP
ISSN journal
00150193
Volume
202
Issue
1-4
Year of publication
1997
Pages
203 - 210
Database
ISI
SICI code
0015-0193(1997)202:1-4<203:APAMPI>2.0.ZU;2-0
Abstract
The techniques of alternating photocurrents and modulated photoconduct ivities are utilized for the characterization of BTO and BGO crystals. A vibrating interference pattern creates alternating photocurrents. H omogeneous illumination with a varying intensity yields a modulated ph otoconductivity. Frequency dependent measurements are performed. The r esults of both techniques agree rather well and charge carrier mobilit ies are estimated.