Photoelectric phenomena in single crystals of some perovskite oxides
- 1 January 1978
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 18 (1) , 99-102
- https://doi.org/10.1080/00150197808236800
Abstract
Photoconductivity (PQ and thermally stimulated conductivity (TSC) were investigated on some single-crystal perovskite oxides. Using PC spectral dependence, band gap and impurity-level depths were found. The TSC method gave further information about the energy spectrum of local levels. Due to a significant PC and deep local levels, a photoelectret state was achieved in crystals of some compounds. Illumination of lead titanate crystals by light from the intrinsic photoconductivity region was found to induce screening of spontaneous polarization by non-equilibrium carriers.Keywords
This publication has 4 references indexed in Scilit:
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