A novel blue dye for near-IR 'dye-sensitised' solar cell applications.
A squaraine dye incorporating two carboxylic acid attaching groups has been synthesised and used successfully in both liquid and solid-state solar cells, with solar energy to electricity conversion efficiencies (eta) under AM 1.5 G irradiation (100 mW cm(-2)) of 3.7 and 1.5% and short-circuit current densities (J(sc)s) of 8.6 and 4.2 mA cm(-2), with open-circuit voltages (V(oc)) of 591 and 681 mV and fill factors (FF) of 73 and 53%, respectively.
Burke
Anthony
A
Laboratoire de Photonique et Interfaces, Institute des Sciences et Ingénierie Chimiques, Ecole Polytechnique Federal Lausanne, CH-1015, Lausanne, Switzerland.
Schmidt-Mende
Lukas
L
Ito
Seigo
S
Grätzel
Michael
M