Constructing continuous acceptor fibrillar networks and achieving uniform phase separation <i>via</i> polymer-assisted morphology control for 20.3% efficiency additive-free organic solar cells
Fengbo Sun, Jingnan Wu, Bowen Cheng, Lixuan Kan, Hua Feng, Wei Sun, Hao Wang, Yumiao Huo, Sixuan Chen, Xinxin Xia, Xiaoyan Du, Feng Liu, Ergang Wang, Xia Guo, Yongfang Li, Maojie Zhang
Abstract
A small fraction of polymer acceptor was introduced as both nucleating agent and epitaxial growth template to enable small-molecule acceptor to form a continuous fibrillar network, achieving 20.3% efficiency in additive-free organic solar cells.
Topics & Concepts
AcceptorMaterials scienceOrganic solar cellPolymerPhase (matter)Morphology (biology)Chemical engineeringNucleationMoleculeEpitaxyNanotechnologyChemistryOrganic chemistryComposite materialLayer (electronics)BiologyPhysicsGeneticsCondensed matter physicsEngineeringOrganic Electronics and PhotovoltaicsConducting polymers and applicationsPerovskite Materials and Applications