A nonfullerene acceptor as a solid additive realizing a record efficiency of 17.74% in quasi-layered all-polymer solar cells
Wenjing Xu, Miao Zhang, Zhongyuan Liu, Hongyue Tian, Wenqing Zhang, Shixiu Sun, Sang Young Jeong, Fenghua Zhang, Fenghua Zhang, Xiong Li, Qianqian Sun, Xiaotao Hao, Han Young Woo, Xiaoling Ma, Fujun Zhang, Fujun Zhang
Abstract
The nonfullerene acceptor L8-BO as solid additive was incorporated into QLA-PSCs based on PM6 and PY-IT. The molecular orientation and exciton diffusion length in PY-IT layer can be optimized, resulting in the PCE enhanced from 16.14% to 17.74%.
Topics & Concepts
AcceptorMaterials scienceExcitonDiffusionPolymer solar cellPolymerActive layerOrganic solar cellLayer (electronics)OptoelectronicsNanotechnologySolar cellPhysicsComposite materialThermodynamicsCondensed matter physicsThin-film transistorOrganic Electronics and PhotovoltaicsConducting polymers and applicationsThin-Film Transistor Technologies