title: Design and development of novel linker for PbS quantum dots/TiO₂ mesoscopic solar cell.
abstract: A novel bifunctional linker molecule, bis(4-mercaptophenyl)phosphinic acid, is designed to be used in a QDs solar cells. The linker anchors to TiO(2) mesoporous film through the phosphinic acid functional group and to the PbS QDs through the two thiol groups. The way of attachment of this new linker molecule in a photovoltaic PbS QDs/TiO(2) mesoporous device was studied by FTIR measurements. The photovoltaic performance of this new linker in a heterojunction PbS QDs solar cell show high V(oc) relative to QDs based solar cells, which will allow to receive high power conversion efficiency using this novel designed linker. This novel bifunctional linker molecule should pave the way for enhancing binding strength, and efficiency of QDs solar cells compared to the state-of-the-art linkers.
authors.affiliation: Laboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland. lioz.etgar@epfl.ch
authors.forename: Lioz
authors.initials: L
authors.lastname: Etgar
authors.forename: Jinhyung
authors.initials: J
authors.lastname: Park
authors.forename: Claudia
authors.initials: C
authors.lastname: Barolo
authors.forename: Md K
authors.initials: MK
authors.lastname: Nazeeruddin
authors.forename: Guido
authors.initials: G
authors.lastname: Viscardi
authors.forename: Michael
authors.initials: M
authors.lastname: Graetzel
mesh_terms: D007854:Lead / Q000737:chemistry*; D010721:Phosphinic Acids / Q000737:chemistry; D016062:Porosity; D045663:Quantum Dots; D012993:Solar Energy; D017550:Spectroscopy, Fourier Transform Infrared; D013440:Sulfides / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
chemical_list: D010721:Phosphinic Acids; D013440:Sulfides; C009495:titanium dioxide; C018391:lead sulfide; D007854:Lead; D014025:Titanium