title: A Nonfullerene Small Molecule Acceptor with 3D Interlocking Geometry Enabling Efficient Organic Solar Cells.
abstract: A new 3D nonfullerene small-molecule acceptor is reported. The 3D interlocking geometry of the small-molecule acceptor enables uniform molecular conformation and strong intermolecular connectivity, facilitating favorable nanoscale phase separation and electron charge transfer. By employing both a novel polymer donor and a nonfullerene small-molecule acceptor in the solution-processed organic solar cells, a high-power conversion efficiency of close to 6% is demonstrated.
authors.affiliation: Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea.
authors.forename: Jaewon
authors.initials: J
authors.lastname: Lee
authors.affiliation: Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea.
authors.forename: Ranbir
authors.initials: R
authors.lastname: Singh
authors.affiliation: Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea.
authors.forename: Dong Hun
authors.initials: DH
authors.lastname: Sin
authors.affiliation: Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea.
authors.forename: Heung Gyu
authors.initials: HG
authors.lastname: Kim
authors.affiliation: Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea.
authors.forename: Kyu Chan
authors.initials: KC
authors.lastname: Song
authors.affiliation: Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, South Korea.
authors.forename: Kilwon
authors.initials: K
authors.lastname: Cho
keywords: 3D interlocking; nonfullerene acceptors; organic solar cells; perylene diimides