Functionalized styryl bipyridine as a superior chelate for a ruthenium sensitizer in dye sensitized solar cells

摘要

The new sensitizer MC119 has been synthesized and the solar cell constructed with 0.25 cm ~2 active area photoelectrode in combination with an electrolyte composed of 0.6 M dimethylpropyl-imidazolium iodide (DMPII), 0.05 M I _2, 0.5 M TBP and 0.1 M LiI in acetonitrile achieved a solar to electric energy conversion efficiency (η) of 8.36% under Air Mass (AM) 1.5 sunlight, while the reference N719 sensitized solar cell exhibited η-value of 7.2%.