Investigation of thermal and electrical properties of As-Se glasses modified with Cu using DSC and AC impedance spectroscopy

被引：1

作者：

Siljegovic, M. V. ^{[1
]}

Petrovic, S. R. Lukic ^{[1
]}

Sekulic, D. L. ^{[2
]}

Strbac, G. R. ^{[1
]}

Skuban, F. ^{[1
]}

Bosak, O. ^{[3
]}

Petrovic, D. M. ^{[1
]}

机构：

[1] Univ Novi Sad, Fac Sci, Trg Dositeja Obradovica 4, Novi Sad 21000, Serbia

[2] Univ Novi Sad, Fac Tech Sci, Trg DositejaObradovica 6, Novi Sad 21000, Serbia

[3] Slovak Univ Technol Bratislava, Fac Mat Sci & Technol, JanaBottu 25, Trnava 91724, Slovakia

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2018年 / 124卷 / 12期

关键词：

OPTICAL-PROPERTIES; SYSTEM; CHALCOGENIDES;

D O I：

10.1007/s00339-018-2289-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Investigations of thermal properties of CuxAs50Se50-x chalcogenides were carried out using a differential scanning calorimeter. It was established that copper introduction significantly affects the complexity of structural network. This was indicated by double-stage crystallization process in the compound Cu15As50Se35. Besides relaxation, all the glasses during heating show relaxation. The complexity of the network influences the conductivity values and transport properties in a way of higher DC and AC conductivity for the compound with the highest Cu share. Impedance spectra show two semicircles, indicating the existence of two polarization processes in different frequency ranges. The presence of kinetic and as well as diffusion processes in polarization of the samples with x=10 and 15at% of Cu strongly affects the unusually high values of the real part of dielectric permittivity in low- and medium-frequency range.

引用

页数：7

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