Electrical properties of copper- and silver-containing superionic (Cu1-xAgx)7SiS5I mixed crystals with argyrodite structure

被引：30
|
作者：
Studenyak, I. P. [1 ]
Pogodin, A. I. [1 ]
Studenyak, V. I. [1 ]
Izai, V. Yu. [1 ]
Filep, M. J. [1 ]
Kokhan, O. P. [1 ]
Kranjec, M. [2 ]
Kus, P. [3 ]
机构：
[1] Uzhgorod Natl Univ, Pidgirna St 46, UA-88000 Uzhgorod, Ukraine
[2] Univ North, J Krizanica St 33, Varazhdin 42000, Croatia
[3] Comenius Univ, Bratislava 84248, Slovakia
来源：
SOLID STATE IONICS | 2020年 / 345卷 / 345期
关键词：
Argyrodites; Crystal growth; Nyquist plot; Electrical conductivity; Activation energy; Compositional dependence; CONDUCTIVITY; CONDUCTORS; GROWTH; FAMILY;
D O I：
10.1016/j.ssi.2019.115183
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The copper and silver containing (Cu1-xAgx)(7)SiS5I mixed crystals with argyrodite structure have been grown by direct solidification using the Bridgman-Stockbarger technique. Measurements of electrical conductivity of mixed crystals by means of impedance spectroscopy were carried out in the frequency range from 2 x 10(1) Hz to 2 x 10(6) Hz and temperature range 292-378 K. Frequency dependences of total electrical conductivity were studied, Nyquist plots were constructed and analysed. The influence of Cu+ -> Ag+ cation substitution on the total electrical conductivity, on the electronic and ionic components of the electrical conductivity as well as on their activation energies for (Cu1-xAgx)(7)SiS5I mixed crystals was investigated.
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页数：6
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