A perylene diimide-containing acceptor enables high fill factor in organic solar cells. Issue 77 (26th August 2020)

• Record Type: Journal Article
• Authors: Ding, Kui; Shan, Tong; Xu, Jinqiu; Li, Mengyang; Wang, Yan; Zhang, Yi; Xie, Ziyi; Ma, Zaifei; Liu, Feng; Zhong, Hongliang
• Is Part Of: Chemical communications. Volume 56:Issue 77(2020)
• Page Start: 11433
• Page End: 11436
• Publication Date: 2020-08-26
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc04297h
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A fused-ring electron acceptor containing perylene diimide shows an extremely high fill factor of 81.3% in organic solar cells. Abstract : A new non-fullerene acceptor PDFC is prepared by introducing perylene diimide into the core of an A–DA′D–A architecture. Due to the large conjugation and electron-deficient ability of perylene diimide, PDFC shows strong absorption, suitable energy levels and favorable face-on packing. The optimal device realizes a PCE of 12.56% with one of the highest fill factors (81.3%). A PCE of 9.66% is obtained in a 570 nm thick-film device based on PDFC.