Photovoltages, photocurrents and photorefractive effects in KNbO3:Fe
- 1 January 1978
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 22 (1), 671-674
- https://doi.org/10.1080/00150197808237365
Abstract
The charge transport parameters describing the anomalous bulk photovoltages and photocurrents in KNbO3 with different Fe concentrations have been evaluated. From these parameters the photosensitivity, i.e. the refractive index changes per absorbed energy density, has been derived. The samples used in this study have been prepared by reduction or oxidation treatment in order to obtain dark conductivities varying between 10-6 and 10-13 (ω · cm)-1. Photovoltages between 2 V/cm and 800 V/cm have been measured depending on dopant concentration and chemical treatment.Keywords
This publication has 11 references indexed in Scilit:
- On the preparation of pure, doped and reduced KNbO3 single crystalsJournal of Crystal Growth, 1978
- Photorefractive effects and photocurrents in KNbO3: FeFerroelectrics, 1978
- Volume hologram recording and charge transfer process in Bi12SiO20 and Bi12GeO20Journal of Applied Physics, 1977
- The possible mechanism for the bulk photovoltaic effect and optical damage in ferroelectricsApplied Physics A, 1977
- The photoinduced Rayleigh scattering in BaTiO3 crystals showing the bulk photovoltaic effectApplied Physics Letters, 1977
- A bulk photovoltaic effect due to electron-phonon coupling in polar crystalsPhysics Letters A, 1976
- Optically induced refractive index changes in KNbO3:FeFerroelectrics, 1976
- Photorefractive effects for reversible holographic storage of informationApplied Physics A, 1975
- Spectroscopic investigation of the photorefractive recording and erasure process in LiNbO3 : FeApplied Physics Letters, 1975
- High-voltage bulk photovoltaic effect and the photorefractive process in LiNbO3Applied Physics Letters, 1974