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A Nonfullerene Small Molecule Acceptor with 3D Interlocking Geometry Enabling Efficient Organic Solar Cells
Author(s) -
Lee Jaewon,
Singh Ranbir,
Sin Dong Hun,
Kim Heung Gyu,
Song Kyu Chan,
Cho Kilwon
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201504010
Subject(s) - organic solar cell , acceptor , materials science , intermolecular force , molecule , small molecule , interlocking , polymer , nanoscopic scale , nanotechnology , chemical physics , chemistry , physics , organic chemistry , biochemistry , composite material , condensed matter physics , mechanical engineering , engineering
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.