Tweaking the Molecular Geometry of a Tetraperylenediimide Acceptor
By Han, Han; Ma, Lik-Kuen; Zhang, Lin; Guo, Yikun; Li, Yunke; Yu, Han; Ma, Wei; Yan, He; Zhao, Dahui
Published in ACS Applied Materials & Interfaces
2019
Abstract
Partial flattening of the spatially extended molecular scaffold has been employed as an effective tactic to improve the device performance of a perylenediimide (PDI)-based small-molecule acceptor because the less twisted yet not completely planar molecular geometry is anticipated to improve the molecular packing and thereby attain a more suitable balance between the carrier transport ability and phase domain size. A small-molecule acceptor BF