Abstract
In this work we have investigated the effect of CdSe nanoparticles (Nps) on the fluorescence spectra of conjugate polymer Poly(3-hexylthiophene-2,5-diyl) (P3HT). The fluorescence intensity is significantly decreased in both solution and solid films by the incorporation of CdSe Nps. This observed effect in the nanocomposite P3HT-CdSe is analyzed by using the Franck–Condon theory which reproduces correctly the decrease of the fluorescence with the Nps concentration and permits to reach the Huang–Rhys factor and the relaxation energy which are shown efficient to explain the fluorescence quenching.
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