Near-IR photoresponse of ruthenium dipyrrinate terpyridine sensitizers in the dye-sensitized solar cells.
Coordination of bidentate 5-pentafluorophenyldipyrrinate (pfpdp) or 5-(2-thienyl)dipyrrinate (2-tdp) to a Ru(II) center bearing 2,2':6',2″-terpyridine-4,4',4″-tricarboxylate (tctpy) and a NCS(-) ligand results in strongly light-absorbing complexes [Ru(tctpy)(L)(NCS)] (L = pfpdp or 2-tdp). Anchored to a mesoporous TiO2 electrode, these complexes afford a photoaction spectral response at wavelengths of up to 950 nm, one of the most red-shifted values reported to date for molecular dyes in the dye-sensitized solar cell (DSSC).
Department of Chemistry & Biochemistry, Florida State University , 95 Chieftan Way, Tallahassee, Florida 32306, United States.
Guocan
G
Li
Aswani
A
Yella
Douglas G
DG
Brown
Serge I
SI
Gorelsky
Mohammad K
MK
Nazeeruddin
Michael
M
Grätzel
Curtis P
CP
Berlinguette
Michael
M
Shatruk