A solvent-free, SeCN-/(SeCN)3- based ionic liquid electrolyte for high-efficiency dye-sensitized nanocrystalline solar cells.
A solvent-free ionic liquid electrolyte based on the SeCN-/(SeCN)3- redox couple has been employed for high-efficiency dye-sensitized nanocrystalline solar cells. For the first time an alternative redox couple has been identified to rival and even exceed the performance of the iodide/triiodide couple even at full sunlight. Unprecedented 7.5-8.3% power conversion efficiencies under AM 1.5 sunlight have been achieved for photovoltaic devices with solvent-free ionic liquid electrolytes.
Wang
Peng
P
Laboratory for Photonics & Interfaces, Swiss Federal Institute of Technology, CH 1015 Lausanne, Switzerland.
Zakeeruddin
Shaik M
SM
Moser
Jacques-E
JE
Humphry-Baker
Robin
R
Grätzel
Michael
M