title: A solvent-free, SeCN-/(SeCN)3- based ionic liquid electrolyte for high-efficiency dye-sensitized nanocrystalline solar cells.
abstract: 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.
authors.affiliation: Laboratory for Photonics & Interfaces, Swiss Federal Institute of Technology, CH 1015 Lausanne, Switzerland.
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.forename: Shaik M
authors.initials: SM
authors.lastname: Zakeeruddin
authors.forename: Jacques-E
authors.initials: JE
authors.lastname: Moser
authors.forename: Robin
authors.initials: R
authors.lastname: Humphry-Baker
authors.forename: Michael
authors.initials: M
authors.lastname: Grätzel