Počet záznamů: 1

Irreversible photobleaching, photorefraction and photoexpansion in GeS2 amorphous film

  1. 1.
    0341644 - UMCH-V 2011 RIV CN eng J - Článek v odborném periodiku
    Knotek, P. - Tichý, Ladislav - Arsova, D. - Ivanova, Z.G. - Tichá, H.
    Irreversible photobleaching, photorefraction and photoexpansion in GeS2 amorphous film.
    Materials Chemistry and Physics. Roč. 119, 1-2 (2010), s. 315-318 ISSN 0254-0584
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: amorphous chalcogenide films * irradiation effects * optical band gap
    Kód oboru RIV: CA - Anorganická chemie
    Impakt faktor: 2.356, rok: 2010

    The photoinduced irreversible effects in amorphous GeS2 film were investigated. The magnitude of the photobleaching was found at around = 13% and it was discussed within the Davis-Mott model and within Taucś model for optical transitions in amorphous solids. Based on the optical measuremets and the Atomic Force Microscopy we also observed photoexpansion at around = 4.8% accompanied by a decrease in the refractive index from n = 2.02 for the virgin film to n = 1.94 for a film illuminated until a nearly steady state.
    Trvalý link: http://hdl.handle.net/11104/0005827