Photoluminescence study of functionalized polysiloxane gel

Photoluminescence of a polysiloxane gel film incorporating a partially conj ugated copolymer polyether-polyphenylenevinylene (PEPPV) has been studied a nd compared with results obtained from bulk and vacuum evaporated films of the same starting material. The evaporation clearly affects the distributio n of lengths of the conjugated parts, yet the incorporation in the gel matr ix induces only slight changes in the spectroscopic properties of the polym er.