Halogen bonding--a key step in charge recombination of the dye-sensitized solar cell

Matti Tuikka; Pipsa Hirva; Kari Rissanen; Jouko Korppi-Tommola; Matti Haukka

doi:10.1039/c1cc10491h

Halogen bonding--a key step in charge recombination of the dye-sensitized solar cell

Chem Commun (Camb). 2011 Apr 21;47(15):4499-501. doi: 10.1039/c1cc10491h. Epub 2011 Mar 10.

Authors

Matti Tuikka¹, Pipsa Hirva, Kari Rissanen, Jouko Korppi-Tommola, Matti Haukka

Affiliation

¹ Department of Chemistry, University of Eastern Finland, P.O. Box 111, FI-80101 Joensuu, Finland. matti.haukka@uef.fi

PMID: 21390388
DOI: 10.1039/c1cc10491h

Abstract

The halogen bonding between [Ru(dcbpy)(2)(SCN)(2)] dye and I(2) molecule has been studied. The ruthenium complex forms a stable [Ru(dcbpy)(2)(SCN)(2)]···I(2)·4(CH(3)OH) adduct via S···I interaction between the thiocyanate ligand and the I(2) molecule. The adduct can be seen as a model for one of the key intermediates in the regeneration cycle of the oxidized dye by the I(-)/I(3)(-) electrolyte in dye sensitized solar cells.