A perylene diimide-containing acceptor enables high fill factor in organic solar cells
Kui Ding, Tong Shan, Jinqiu Xu, Mengyang Li, Yan Wang, Ying Zhang, Ziyi Xie, Zaifei Ma, Feng Liu, Hongliang Zhong
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.
Topics & Concepts
PeryleneDiimideAcceptorOrganic solar cellMaterials sciencePhotochemistryChemistryOrganic chemistryMoleculePhysicsComposite materialPolymerCondensed matter physicsOrganic Electronics and PhotovoltaicsConducting polymers and applicationsThin-Film Transistor Technologies