Design and synthesis of a novel anchoring ligand for highly efficient thin film dye-sensitized solar cells.
A novel ligand, 5,5'-(2,2'-bipyridine-4,4'-diyl)-bis(thiophene-2-carboxylic acid) (BTC), and its Ru(II) complex (BTC-1) in which the anchoring group is attached to the thiophene units were developed. Using a low-volatility electrolyte and 3.3 mum mesoporous TiO2 films BTC-1 achieved a solar-to-electricity conversion efficiency of 6.1%, compared to 4.8% for N719 under the same experimental conditions.
Mishra
Amaresh
A
Institute of Organic Chemistry II and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany. amaresh.mishra@uni-ulm.de
Pootrakulchote
Nuttapol
N
Fischer
Markus K R
MK
Klein
Cedric
C
Nazeeruddin
Md K
MK
Zakeeruddin
Shaik M
SM
Bäuerle
Peter
P
Grätzel
Michael
M