title: A Tetraperylene Diimides Based 3D Nonfullerene Acceptor for Efficient Organic Photovoltaics.
abstract: A nonfullerene acceptor based on a 3D tetraperylene diimideis developed for bulk heterojunction organic photovoltaics. The disruption of perylene diimide planarity with a 3D framework suppresses the self-aggregation of perylene diimide and inhibits excimer formation. From planar monoperylene diimide to 3D tetraperylene diimide, a significant improvement of power conversion efficiency from 0.63% to 3.54% can be achieved.
authors.affiliation: Department of Materials Science and Engineering University of Washington Box 352120 Seattle WA 98195 USA; Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 P.R. China; Department of Pharmacy and Chemistry Taizhou University Taizhou 317000 P.R. China.
authors.forename: Shi-Yong
authors.initials: SY
authors.lastname: Liu
authors.affiliation: Department of Materials Science and Engineering University of Washington Box 352120 Seattle WA 98195 USA; Department of Chemical Engineering National Cheng Kung University Tainan 70101 Taiwan.
authors.forename: Chen-Hao
authors.initials: CH
authors.lastname: Wu
authors.affiliation: Department of Materials Science and Engineering University of Washington Box 352120 Seattle WA 98195 USA.
authors.forename: Chang-Zhi
authors.initials: CZ
authors.lastname: Li
authors.affiliation: Department of Materials Science and Engineering University of Washington Box 352120 Seattle WA 98195 USA.
authors.forename: Sheng-Qiang
authors.initials: SQ
authors.lastname: Liu
authors.affiliation: Department of Materials Science and Engineering National Chiao Tung University 300 Hsinchu Taiwan.
authors.forename: Kung-Hwa
authors.initials: KH
authors.lastname: Wei
authors.affiliation: Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 P.R. China.
authors.forename: Hong-Zheng
authors.initials: HZ
authors.lastname: Chen
authors.affiliation: Department of Materials Science and Engineering University of Washington Box 352120 Seattle WA 98195 USA; Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 P.R. China.
authors.forename: Alex K-Y
authors.initials: AK
authors.lastname: Jen
keywords: 3D molecules; nonfullerene acceptor; organic photovoltaics; perylene diimides; solution‐processed