Time Resolved Fluorescence Quenching and Carrier Generation in Titanyl Phthalocyanine (TiOPc)

We studied the influence of electric field and humidity on photoconductivity and fluorescence in particles of Y-form TiOPc dispersed in polyvinyl butyral (PVB) polymer matrix. Increasing relative humidity from 0% to 42% at room temperature lead to a decrease of the total fluorescence by about 45%. Fluorescence time decays were analyzed by fitting the data to a sum of two exponentials. Qualitative features of fluorescence decay were the same for …