Fine-Tuning the 3D Structure of Nonfullerene Electron Acceptors Toward High-Performance Polymer Solar Cells

• Published in: Advanced materials (Weinheim) Vol. 27; no. 21; pp. 3266 - 3272
• Main Authors: Li, Haiyan, Hwang, Ye-Jin, Courtright, Brett A. E., Eberle, Frank N., Subramaniyan, Selvam, Jenekhe, Samson A.
• Format: Journal Article
• Language: English
• Published: Germany Blackwell Publishing Ltd 01.06.2015
• Subjects: 3D structures; Diimide; Dimers; Energy conversion efficiency; Molecular structure; n-type organic semiconductors; nonfullerene electron acceptors; Photovoltaic cells; polymer solar cells; Solar cells; tetraazabenzodifluoranthene diimide; Three dimensional; Tuning; tetraazabenzodifluoranthene diimide; n-type organic semiconductors; polymer solar cells; 3D structures; nonfullerene electron acceptors

Arylene linkers in a series of new tetraaza­benzodifluoranthene 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...