Synthesis Of Metal-Free Organic Dye For Dye Sensitized Solar Cell

A D--A type of dye was synthesized containing carbazole unit as electron donor phenyl ring as a -linker and cyano acetic acid as an acceptor that absorbs light in the range of 300-530 nm. The structure of dye and its intermediates were confirmed by NMR Mass and FT-IR spectroscopic techniques. Optical properties of dye were investigated using UV-visible spectroscopy.The band gap of dye was calculated to be 2.616 eV. Fabrication of Dye Sensitized Solar Cell DSSC using the synthesized dye and device properties were analyzed .Fill factor and efficiency of dye is found to be 0.55 and 0.74 respectively.