title: Hydrogen bonding in bulk heterojunction solar cells: a case study.
abstract: Small molecules with dithieno[3,2-b;2',3'-d]thiophene as central building block and octyl cyanoacetate and octyl cyanoacetamide as different terminal building blocks have been designed and synthesized. The amide containing small molecule can form intermolecular hydrogen bonding between N-H...O = C of the amide group. The photovoltaic properties and active layer morphologies of the two molecules in bulk heterojunction solar cells are compared to study the influence of hydrogen bonding on the active layer morphology. New methanofullerene compound containing amide group has also been synthesized and compared with conventional fullerene electron acceptors.
authors.affiliation: School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia.
authors.forename: Zeyun
authors.initials: Z
authors.lastname: Xiao
authors.affiliation: School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia.
authors.forename: Kuan
authors.initials: K
authors.lastname: Sun
authors.affiliation: School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia.
authors.forename: Jegadesan
authors.initials: J
authors.lastname: Subbiah
authors.affiliation: School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia.
authors.forename: Shaomin
authors.initials: S
authors.lastname: Ji
authors.affiliation: School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia.
authors.forename: David J
authors.initials: DJ
authors.lastname: Jones
authors.affiliation: School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia.
authors.forename: Wallace W H
authors.initials: WW
authors.lastname: Wong