000209457 001__ 209457
000209457 005__ 20190117190717.0
000209457 022__ $$a1010-6030
000209457 0247_ $$2doi$$a10.1016/j.jphotochem.2003.12.015
000209457 037__ $$aARTICLE
000209457 245__ $$aCoordinative interactions in a dye-sensitized solar cell
000209457 269__ $$a2004
000209457 260__ $$c2004
000209457 336__ $$aJournal Articles
000209457 520__ $$aResonance Raman scattering studies of a complete dye-sensitized solar cell (DSC) including iodine and lithium iodide in the electrolyte indicate that triiodide (I3-) exchange the SCN- ligand of the dye bis(tetrabutylammonium) cis-bis(thiocyanato)bis(2,2'-bipyridine-4-carboxylic acid, 4'-carboxylate)ruthenium(II). The choice of cation in the iodide salt influenced the ligand stability of the dye. It was proposed that an ion pair Li+···I3- formation occurred which by a reduced electrostatic repulsion between I3- and SCN- facilitated the exchange of these anions at Ru(II) of the dye. The additive 1-methylbenzimidazole (MBI) suppressed the SCN-/I3- ligand exchange by forming a complex with Li+. The concns. of Li+ and MBI have to be carefully balanced due to the SCN- ligand exchange with MBI in deficiency of Li+. In order to observe and understand the prevailing coordinative interactions between the components in a DSC, the use of characterization methods with which complete devices can be studied is necessary.
000209457 6531_ $$athiocyanato ligand exchange coordinative interaction dye sensitized solar cell
000209457 700__ $$aGreijer Agrell, Helena
000209457 700__ $$aLindgren, Jan
000209457 700__ $$0248439$$aHagfeldt, Anders$$g164385
000209457 773__ $$j164$$q23-27$$tJournal of Photochemistry and Photobiology, A: Chemistry
000209457 909C0 $$0252532$$pLSPM$$xU12908
000209457 909CO $$ooai:infoscience.tind.io:209457$$pSB$$particle
000209457 937__ $$aEPFL-ARTICLE-209457
000209457 973__ $$aOTHER$$rREVIEWED$$sPUBLISHED
000209457 980__ $$aARTICLE