Abstract
Poly (3-hexylthiophene) (P3HT) and modified (functionalized and silanized) multi wall carbon nanotube (MWNT) nanocomposites have been prepared through in situ polymerization process in chloroform medium with FeCl3 oxidant at room temperature. The composites (P3HT-MWNT) are characterized through various characterizations to identify the hybrid nanocomposites. Finally, a quasi solid-state dye synthesized solar cells (DSC) with the hybrid P3HT-MWNT composites, an ionic liquid of 1-methyl-3-propyl imidazolium iodide (PMII) are placed between the dye-sensitized porous TiO2 and the Pt counter electrode without adding of iodine and achieved higher cell efficiency (4.1%), as compared to that containing bare PMII (0.29%). The P3HT-MWNT nanoparticles exploits as the extended electron transfer materials and serve simultaneously as a catalyst for the electrochemical reduction of I-3(-).