Dispersion and photoluminescence of free-metal phtalocyanine doped in sol–gel polyphenylsiloxane glass films

The optical absorption and photoluminescence of metal-free phtalocyanine (H2Pc) in a glassy matrix were discussed regarding the preparation method used. We show that fluorescent monodisperse free metal phtalocyanine can be doped in polyphenylsiloxane glass films using a non-aqueous sol–gel derived method. No fluorescence study of metal-free phtalocyanine doped in polysiloxane sol–gel materials has been reported so far due to the miscibility problem of the dye and its aggregation behavior in aqueous sols.