Multiwall carbon nanotube coated with conducting polyaniline nanocomposites for quasi-solid-state dye-sensitized solar cells

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 i3-. 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%). © 2013 mohammad rezaul karim et al.