TY - JOUR AU - Pogodin, A.I. AU - Studenyak, V.I. AU - Filep, M.Y. AU - Kokhan, O.P. AU - Studenyak, I.P. AU - Kúš, P. PY - 2021/05/13 Y2 - 2024/03/29 TI - Influence of Cation Substitution on Ionic and Electronic Conductivity of (Cu1 – xAgx)7GeS5I Mixed Crystals JF - Ukrainian Journal of Physics JA - Ukr. J. Phys. VL - 66 IS - 4 SE - Semiconductors and dielectrics DO - 10.15407/ujpe66.4.341 UR - https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2020117 SP - 341 AB - <p>Impedance measurements of (Cu<sub>1−x</sub>Ag<sub>x</sub>)<sub>7</sub>GeS<sub>5</sub>I mixed crystals are carried out in the frequency range from 10 Hz to 300 kHz and in the temperature interval 292–383 K. The temperature and frequency dependences of the electrical conductivity for (Cu<sub>1−x</sub>Ag<sub>x</sub>)<sub>7</sub>GeS<sub>5</sub>I mixed crystals are studied. Based on the analysis of Nyquist plots and using the electrode equivalent circuits, the values of ionic and electronic components of the electrical conductivity are determined. The compositional behavior of the ionic and electronic conductivities, as well as the compositional behavior of their activation energies, are discussed. The ratio of ionic and electronic components of the conductivity for (Cu<sub>1−x</sub>Ag<sub>x</sub>)<sub>7</sub>GeS<sub>5</sub>I mixed crystals was analyzed.</p> ER -