title: Dye-sensitized solar cells employing a single film of mesoporous TiO2 beads achieve power conversion efficiencies over 10%.
abstract: Dye-sensitized solar cells employing mesoporous TiO(2) beads have demonstrated longer electron diffusion lengths and extended electron lifetimes over Degussa P25 titania electrodes due to the well interconnected, densely packed nanocrystalline TiO(2) particles inside the beads. Careful selection of the dye to match the dye photon absorption characteristics with the light scattering properties of the beads have improved the light harvesting and conversion efficiency of the bead electrode in the dye-sensitized solar cell. This has resulted in a solar to electric power conversion efficiency (PCE) of greater than 10% (10.6% for Ru(II)-based dye C101 and 10.7% using C106) for the first time using a single screen-printed titania layer cell construction (that is, without an additional scattering layer).
authors: Laboratoire de Photonique et Interfaces, Institut des Sciences et Ingénieurie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland.
authors: Frédéric
authors: F
authors: Sauvage
authors: Dehong
authors: D
authors: Chen
authors: Pascal
authors: P
authors: Comte
authors: Fuzhi
authors: F
authors: Huang
authors: Leo-Philipp
authors: LP
authors: Heiniger
authors: Yi-Bing
authors: YB
authors: Cheng
authors: Rachel A
authors: RA
authors: Caruso
authors: Michael
authors: M
authors: Graetzel