All solid state dye-sensitized solar cells by the specific interaction of CuI with NCS groups for practical use

概要

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Highly efficient all solid state dye-sensitized solar cells (DSSC) were fabricated by the specific interaction of CuI with the NCS groups of the dye molecules and that of the counter electrodes. The specific interaction was studied using X-ray photoelectron spectroscopy (XPS) and field emission scanning electron microscope (FE-SEM). The counter electrode containing NCS groups was prepared by coating the PEG solution containing NCS groups. The counter electrode was connected with the the NCS groups of the dye molecules by CuI. The specific interaction between the CuI with the NCS groups of the dye molecules and that of the counter electrode facilitate the injection of the hole into the counter electrode to give the highly efficient all solid state DSSC. The DSSC were stable and exhibited high efficiency (4.2%). This DSSC has potential to be applied for practical use.
公益社団法人日本セラミックス協会の論文