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)


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
Issue number2
Publication statusPublished - 2002
MoE publication typeA1 Journal article-refereed

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