Raman investigation of sol-derived hybrid polymers for optoelectronics

M. Gnyba, Mikko Keränen, M. Kozanecki, R. Bogdanowicz, B. Kosmowski, P. Wroczynski

    Research output: Contribution to journalArticleScientificpeer-review

    21 Citations (Scopus)

    Abstract

    A Raman spectroscopic study was carried out in order to investigate the synthesis process of organically modified silane
    (ORMOSIL) hybrid polymers. These materials were prepared for optoelectronic application, using the sol-gel technology.
    Our aim was to analyse the ability of Raman measurements to estimate the efficiency and correctness of particular stages of
    the technological process.
    To synthesise a hybrid for optical planar waveguides, denoted as GSiC, a system of 3-glycidoxypropyl-trimethoxysilane/
    methacryloxy-propyltrimethoxysilane (GPTS/ MPTS) was used as a precursor. To diagnose the first step – gelation – the
    Raman spectra of monomers and gel were recorded. Analysis showed that gelation parameters should be improved to increase
    the efficiency of monomers hydrolysis and epoxy ring opening in GPTS.
    After next two steps – deposition and hardening – Raman microscopy was used for the characterisation of polymer thin films. Information about the film thickness, opening of double C=C bonds in MPTS and types of bonds in organic and inorganic part was obtained.
    Raman spectroscopy proved its considerable potential in technological process diagnostics. A molecular structure of components can be controlled
    at relevant stages of the synthesis. This is necessary in order to design new materials on a molecular level and obtain
    required properties and good quality of the final product.
    Original languageEnglish
    Pages (from-to)137-143
    JournalOpto-electronics Review
    Volume10
    Issue number2
    Publication statusPublished - 2002
    MoE publication typeA1 Journal article-refereed

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