Electrical and dielectrical properties of As-Se-Te glasses

0088102 - ÚFE 2008 RIV RO eng J - Journal Article
Kubliha, M. - Kalužný, J. - Pedlíková, Jitka - Zavadil, Jiří - Labaš, V.
Electrical and dielectrical properties of As-Se-Te glasses.
[Elektrické a dielektrické vlastnosti As-Se-Te skel.]
Journal of Optoelectronics and Advanced Materials. Roč. 9, č. 10 (2007), s. 3082-3087. ISSN 1454-4164. E-ISSN 1841-7132.
[ANC-3: International Conference on Amourphous and Nanostructured Chalcogenides /3./. Brasov, 02.07.20007-06.07.2007]
R&D Projects: GA ČR GA104/02/0799; GA ČR GA104/05/0878
Grant - others:GA SR(SK) APVV-20-043505; GA SR(SK) APVT-20-011304; VEGA(SK) 1/1080/04
Institutional research plan: CEZ:AV0Z20670512; CEZ:AV0Z40320502
Source of funding: V - Other public resources ; V - Other public resources ; V - Other public resources
Keywords : chalcogenide glasses * electrical conductivity * transmission * dielectric properties
Subject RIV: CA - Inorganic Chemistry
Impact factor: 0.827, year: 2007

Temperature dependencies of the direct electrical conductivity as well as temperature and frequency dependencies of the complex electrical modulus for the pure As – Se - Te glasses and those doped by the rare earth (RE3+ )are reported. A single mechanism of electrical conductivity with the activation energy U=(0.80 plus/minus 0.05) eV has been found in reported systems. It follows from measurements of the complex modulus that studied glasses are mono-phase but they contain certain amount of physical defects.

Jsou studovány teplotní závislosti stejnosměrné el. vodivosti a teplotní a frekvenční závislosti komplexního elektrického modulu čistých skel As-Se-Te a skel dotovaných vzácnými zeminami. Skla vykazovala jediný mechanismus elektrické vodivosti s aktivační energií U=(0.80 plus/mínus 0.05) eV. Měření komplexního elektrického modulu potvrdila existenci pouze jedné fáze ve studovaných sklech.
Permanent Link: http://hdl.handle.net/11104/0004211