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Fluorescence Relaxation Kinetics of Poly(methylphenylsilane) Film and Nanocomposites

Fluorescence Relaxation Kinetics of Poly(methylphenylsilane) Film and Nanocomposites

N Ostapenko, V Gulbinas, R Augulis, A Boiko, M Chursanova, A Volkov, G Telbiz

Nanoscale Res Lett. 2016 Dec;11(1):185.

PMID: 27067733

Abstract:

A comparative study of fluorescence relaxation kinetics of σ-conjugated poly(methylphenylsilane) (PMPS) polymer film and nanocomposites has been performed by ultrafast time-gated fluorescence measurements at various temperatures. Investigations have revealed a fine structure of excitonic σ-σ* band. We attribute this structure to emission from two spatially independent states with different ordering of the polymer chain segments, type gauche and trans conformations. In contrary to a more ordered polymer poly(di-n-hexylsilane), no clear thermochromic transition has been detected in PMPS film; however, the trans band intensity increases with temperature and with excitation wavelength, but it is absent when polymer is incorporated into nanopores of small diameter.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1072146	Hexylsilane		1072-14-6	Price
AP766085	Methylphenylsilane		766-08-5	Price

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