Study of electrical properties of glassy Se100â€�?�ð�?�¥Teð‘�? alloys

[摘要] Temperature and frequency dependence of a.c. conductivity have been studied in glassy Se_{100â€�?�ð�?��?}Te_ð‘�? (ð‘�? = 10, 20 and 30) over different range of temperatures and frequencies. An agreement between experimental and theoretical results suggests that the a.c. conductivity behaviour of seleniumâ€�?�tellurium system (Se_{100â€�?�ð�?��?}Te_ð‘�?) can be successfully explained by correlated barrier hopping (CBH) model. The density of defect states has been determined using this model for all the glassy alloys.

[学科分类] 材料工程

[关键词] Chalcogenide glasses;hopping conduction;density of defect states.