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

Hitoshi SAKAMOTO; Sho IGARASHI; Kazuma NIUME; Masayuki NAGAI

doi:10.2109/jcersj2.120.304

Notes

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

Hitoshi SAKAMOTO, Sho IGARASHI, Kazuma NIUME, Masayuki NAGAI

Author information

Keywords: All solid state dye-sensitized solar cells, CuI, Interface, Counter electrode, Specific interaction

JOURNAL FREE ACCESS

2012 Volume 120 Issue 1403 Pages 304-306

DOI https://doi.org/10.2109/jcersj2.120.304

Details

Abstract

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.

Corresponding author

Register with J-STAGE for free!