Ionic conduction of the perovskite-type halides |
| |
| Authors: | Junichiro Mizusaki Kimiyasu Arai Kazuo Fueki |
| |
| Affiliation: | Department of Industrial Chemistry, Faculty of Engineering, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan |
| |
| Abstract: | The ionic conduction in the perovskite-type halides, CsPbCl3, CsPbCl3 and KMnCl3, was studied. Measurements were made of ac conductivity at temperatures from 150°C to the melting point, and of ionic transport number using the Tubandt, EMF and ion-blocking methods. The effects of impurity doping on the ionic conductivity of CsPbCl3 were also studied using the samples of composition, CsPb0.99M0.01Cl2.99 (M = Li, Na, K, Ag). It was concluded that these materials are halide-ion condcutors. The ionic conductivities of CsPbCl3 and CsPbBr3 are close to those of the well known halide-ion conductors, PbCl2 and PbBr2. The ionic transport numbers were found to be > 0.9 for CsPbCl3 and CsPbBr3, and about 0.99 for KMnCl3. The conduction was considered to be caused by the migration of halide-ion vacancies V | |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
