Investigation of pyroelectric characteristics of Al2O3 doped KVO3 and CsVO3

Article abstract of DOI:10.1016/0025-5408(91)90081-V

The pyroelectric properties of undoped and aluminium-oxide doped potassium vanadate and cesium vanadate have been studied in the temperature range covering their transition points. The values of pyroelectric current and coefficient of undoped and Al₂O₃-doped KVO₃ and CsVO₃ show a sharp peak at their Curie temperature. These Curie temperatures are consistent with those investigated by dielectric-constant measurements and the hysteresis-loop method. The Curie temperatures of KVO₃ and CsVO₃ doped with Al₂O₃ decrease with increasing dopant concentrations.