title: Carbazole functionalized isocyanide brushes in heterojunction photovoltaic devices.
abstract: In this work, carbazole-containing polyisocyanide (PIACz) brushes were used for photovoltaic devices. A photovoltaic device was fabricated on top of the brushes by spin-coating a suitable acceptor and evaporating an Al cathode. Devices with a poly(N-vinylcarbazole) (PVK) bulk polymer were also prepared for comparison. Interestingly, the brushes showed better photovoltaic characteristics as compared to the blended PVK system. This is attributed to the specific morphologies of the polyisocyanide brushes, which provide a large interfacial area between the donor and acceptor for efficient photogeneration. It was found that the device performance varied according to the molecular size of the incorporated acceptors.
authors.affiliation: Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom.
authors.forename: Eunhee
authors.initials: E
authors.lastname: Lim
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
authors.forename: Erik
authors.initials: E
authors.lastname: Schwartz
authors.forename: Jeroen J L M
authors.initials: JJ
authors.lastname: Cornelissen
authors.forename: Roeland J M
authors.initials: RJ
authors.lastname: Nolte
authors.forename: Alan E
authors.initials: AE
authors.lastname: Rowan
authors.forename: Neil C
authors.initials: NC
authors.lastname: Greenham
authors.forename: Lee-Mi
authors.initials: LM
authors.lastname: Do
mesh_terms: D002227:Carbazoles / Q000737:chemistry*; D003486:Cyanides / Q000737:chemistry*; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012666:Semiconductors
chemical_list: D002227:Carbazoles; D003486:Cyanides; C041514:carbazole