title: Three-Bladed Rylene Propellers with Three-Dimensional Network Assembly for Organic Electronics.
abstract: Two kinds of conjugated C3-symmetric perylene dyes, namely, triperylene hexaimides (TPH) and selenium-annulated triperylene hexaimides (TPH-Se), are efficiently synthesized. Both TPH and TPH-Se have broad and strong absorption in the region 300-600 nm together with suitable LUMO levels of about -3.8 eV. Single-crystal X-ray diffraction studies show that TPH displays an extremely twisted three-bladed propeller configuration and a unique 3D network assembly in which three PBI subunits in one TPH molecule have strong π-π intermolecular interactions with PBI subunits in neighboring molecules. The integration of selenophene to TPH endows TPH-Se with a more distorted propeller configuration and a more compact 3D network assembly due to the Se···O interactions. A single-crystal transistor confirms that both TPH and TPH-Se possess good electron-transport ability. TPH and TPH-Se acceptor-based solar cells show high power conversion efficiency of 8.28% and 9.28%, respectively, which mainly results from the combined properties of broad and strong absorption ability, appropriate LUMO level, desirable aggregation, high electron mobility, and good film morphology with the polymer donor.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Meng
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|Heeger Beijing Research and Development Center, School of Chemistry and Environment, Beihang University , Beijing 100191, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Huiting
authors.initials: H
authors.lastname: Fu
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Chengyi
authors.initials: C
authors.lastname: Xiao
authors.affiliation: State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China.
authors.forename: Xiangyi
authors.initials: X
authors.lastname: Meng
authors.affiliation: Institute for Solid State Theory and Center for Multiscale Theory & Computation, University of Muenster , Wilhelm-Klemm-Strasse 10, 48149 Muenster, Germany.
authors.forename: Thorsten
authors.initials: T
authors.lastname: Winands
authors.affiliation: State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Ma
authors.affiliation: Department of Chemistry, Capital Normal University , Beijing 100048, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Wei
authors.affiliation: Heeger Beijing Research and Development Center, School of Chemistry and Environment, Beihang University , Beijing 100191, China.
authors.forename: Bingbing
authors.initials: B
authors.lastname: Fan
authors.affiliation: Heeger Beijing Research and Development Center, School of Chemistry and Environment, Beihang University , Beijing 100191, China.
authors.forename: Lijun
authors.initials: L
authors.lastname: Huo
authors.affiliation: Institute for Solid State Theory and Center for Multiscale Theory & Computation, University of Muenster , Wilhelm-Klemm-Strasse 10, 48149 Muenster, Germany.
authors.forename: Nikos L
authors.initials: NL
authors.lastname: Doltsinis
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.affiliation: Heeger Beijing Research and Development Center, School of Chemistry and Environment, Beihang University , Beijing 100191, China.
authors.forename: Yanming
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Wang