Publication detail

Study of microstructure in Ag-x(As0.33Se0.67)(100-x) chalcogenide glasses

Year: 2009

Type of publication: článek v odborném periodiku

Name of source: Journal of Non-Crystalline Solids

Publisher name: Elsevier Science BV

Place: Amsterdam

Page from-to: 2054-2058

Titles:

Language	Name	Abstract	Keywords
cze	Studium mikrostruktury v Ag-x(As0.33Se0.67)(100-x) chalkogenidových skel	Skla s obecným vzorcem Ag-x(As0.33Se0.67)(100-x) byly studovány pomocí modulační diferenční skenovací kalorimetrie (MDSC), měření vodivosti a permitivity a pomocí AFAM.	vodivost;dielektrické vlastnosti;chalkogenidy
eng	Study of microstructure in Ag-x(As0.33Se0.67)(100-x) chalcogenide glasses	Glasses with general formula Ag-x(As0.33Se0.67)(100-x) were studied by means of modulated differential scanning calorimetry (MDSC). conductivity and permittivity measurements and atomic force acoustic microscopy (AFAM). In the whole range of doping (x = 2-12 at.% Ag) a phase separation was supposed. The proportional amount of the ion-conductive Ag rich phase increased with the Ag content. A rapid increase (almost four orders of magnitude) in the conductivity was observed in the Ag concentration range 4-8 at.% which could be associated with the interconnection of this ion-conductive phase. The transition from a hole conductivity (at low Ag concentration) to a mixed ionic-hole conductivity at higher Ag concentration was studied by permittivity measurements.	Conductivity;Dielectric properties;Relaxation;Electric modulus;Fast ion conduction;Chalcogenides;Atomic force and scanning tunneling microscopy

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