Slow charge recombination in dye-sensitised solar cells (DSSC) using Al2O3 coated nanoporous TiO2 films.
The conformal growth of an overlayer of Al2O3 on a nanocrystalline TiO2 film is shown to result in a 4-fold retardation of interfacial charge recombination, and a 30% improvement in photovoltaic device efficiency.
Centre for Electronic Materials and Devices, Department of Chemistry, Imperial College of Science, Technology and Medicine, Exhibition Road, London, UK SW7 2AY.
Emilio
E
Palomares
John N
JN
Clifford
Saif A
SA
Haque
Thierry
T
Lutz
James R
JR
Durrant