Abstract
We demonstrate a high yielding green approach for the synthesis of CdS nanoparticles network in poly(3-hexylthiophene-2,5-diyl) (P3HT) polymer film. Triethyl amine has been used as a co-ligand instead of a highly poisonous pyridine to synthesize xanthate functionalized Cd(II) ion in high yields under ambient conditions. There was a significant decrease in the band gap of P3HT from 2.2eV to 1.85eV in P3HT:CdS composite, which has not been observed previously. The TEM image shows that in-situ synthesized CdS nanoparticles are evenly distributed in the P3HT network and a significant photoluminescence quenching of P3HT with CdS suggests its potential application for photovoltaic devices.
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