Kinetics and Rutherford backscattering study of the photo-induced solid state chemical reaction between silver and amorphous As33S67 layers

Tomáš Wagner, Miroslav Vlček, Miloslav Frumar, Vratislav Peřina, Eero Rauhala, Jaakko Saarilahti, Peter J.S. Ewen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    13 Citations (Scopus)

    Abstract

    The kinetics of photo-induced solid state chemical reaction of silver with a As33S67 films in conventional sandwich structure was measured by monitoring the change in thickness of the undoped chalcogenide using a modified computer-controlled technique. The kinetic data obtained shows that there are two stages in the photo-induced reaction process. Rate coefficient and activation energies have been measured and a comparison of the composition and structure of reaction products detected by Rutherford backscattering spectroscopy (RBS) has been made. The RBS spectra obtained at different stages of the photo-induced reaction process show a step-like form of the Ag concentration profile during the course of the reaction and the homogeneous distribution of Ag in the final reaction products, e.g. 31 at percent Ag. The step-like form of the Ag concentration profile is discussed in the framework of the G-cAg diagram for the Ag-As33S67 system. On the basis of the RBS results, it is suggested model explaining the kinetics of the photo-induced reaction.

    Original languageEnglish
    Title of host publicationDevelopments in Optical Component Coatings
    EditorsIan Reid
    PublisherInternational Society for Optics and Photonics SPIE
    Pages244-254
    ISBN (Print)978-0-8194-2161-6
    DOIs
    Publication statusPublished - 1996
    MoE publication typeA4 Article in a conference publication
    EventDevelopments in Optical Component Coatings - Glasgow, UK
    Duration: 15 May 199616 May 1996

    Publication series

    SeriesProceedings of SPIE
    Volume2776
    ISSN0277-786X

    Conference

    ConferenceDevelopments in Optical Component Coatings
    CityGlasgow, UK
    Period15/05/9616/05/96

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