Počet záznamů: 1

Electrical methods for optimization of structural changes and defects in sulphide glasses

  1. 1.
    0340422 - UACH-T 2010 RIV RO eng J - Článek v odborném periodiku
    Kalužný, J. - Pedlíková, Jitka - Zavadil, Jiří - Labaš, V. - Kubliha, M. - Kostka, Petr
    Electrical methods for optimization of structural changes and defects in sulphide glasses.
    Journal of Optoelectronics and Advanced Materials. Roč. 11, č. 12 (2009), s. 2053-2057 ISSN 1454-4164
    Grant CEP: GA ČR GA104/08/0734
    Grant ostatní: GA SR(SK) APVV-20043505
    Výzkumný záměr: CEZ:AV0Z40320502; CEZ:AV0Z20670512
    Klíčová slova: sulphide glasses * electrical * dielectric
    Kód oboru RIV: CA - Anorganická chemie
    Impakt faktor: 0.433, rok: 2009

    Sulphide glasses Ge25Ga10S65 doped by ions of rare earths (Pr3+) are suitable for preparing of active optical fibres because they own low phonon energy needed for activation and rather both high value of refractive index and transparency in IR of spectrum. Suitable electrical and dielectric parameters reflect structural changes in tested glasses and aid to determine the influence of various technological parameters and admixtures. The complex electrical modulus can be used for the investigation of the structural changes of Ge25Ga10S65 glasses due to adding of Pr3+ ions. By this method the rise of clusters into glasses can be detected. The admixture begins to segregate to cluster at higher concentration (>= 3000 wt. ppm). Obtained results of the rise of the clusters agree with the observation by means of electron microscopy.
    Trvalý link: http://hdl.handle.net/11104/0005773