recent development of carbon nanotubes materials as counter electrode for dye-sensitized solar cells

dye-sensitized solar cells present promising low-cost alternatives to the conventional silicon (si)-based solar cells. the counter electrode  generally consists of pt deposited onto fto plate. since pt is rare and expensive metal, nanostructured carbonaceous materials have been widely investigated as a promising alternative to replace it. carbon nanotubes  have shown significant properties such as cost-effectiveness, environmental friendliness, availability, corrosion resistance and excellent catalytic activity towards the redox species make them ideal for replacing pt in the ces of dscs. the review presented below gives a succinct summary of the carbon nanotubes materials in use as counter electrode  in dye-sensitized solar cells .