Abstract

Multiwalled carbon nanotube (MWNT) coated with conducting polyaniline (PAni) nanocomposites has been enforced as for quasi‐solid‐state electrolyte layer in the dye‐sensitized solar cells (DSSCs), and the incorporation of MWNT‐PAni nanoparticles on the cell performance has been examined. The MWNT‐PAni nanoparticles exploited as the extended electron transfer materials, which can reduce charge diffusion length and serve simultaneously as catalyst for the electrochemical reduction of . An ionic liquid of 1‐methyl‐3‐propyl‐imidazolium iodide (PMII) together with the hybrid MWNT‐PAni nanocomposites was placed between the dye‐sensitized porous TiO2 and the Pt counter electrode without adding iodine and achieved a moderately higher cell efficiency (3.15%), as compared to that containing bare PMII (0.26%).

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