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Fine-Tuning the 3D Structure of Nonfullerene Electron Acceptors Toward High-Performance Polymer Solar Cells
Haiyan Li1, Ye-Jin Hwang1, Brett A E Courtright1
1Department of Chemical Engineering and Department of Chemistry, University of Washington, Seattle, WA, 98195-1750, USA.
Advanced Materials (Deerfield Beach, Fla.)
|April 23, 2015
Abstract:
Arylene linkers in a series of new tetraaza-benzodifluoranthene diimide dimers enable tuning of the 3D molecular structure of nonfullerene electron acceptors, facilitating observation of dramatic variation of the power conversion efficiency from 2.6% to 6.4% as the twist angle between the monomeric building blocks in the dimer is varied.
Keywords:
3D structuresn-type organic semiconductorsnonfullerene electron acceptorspolymer solar cellstetraazabenzodifluoranthene diimide
