Enhancing exciton diffusion by reducing energy disorder in organic solar cells
Peiyao Xue, Adiel Calascibetta, Kai Chen, Karen E. Thorn, Yiting Jiang, Jiangjian Shi, Boyu Jia, Mengyang Li, Jingming Xin, Guilong Cai, Rui Yang, Heng Lu, Sara Mattiello, Yao Liu, Zheng Tang, Wei Ma, Xinhui Lu, Qingbo Meng, Justin M. Hodgkiss, Luca Beverina, Ray P. S. Han, Xiaowei Zhan
Abstract
The addition of a highly crystalline polymer AC174 reduces energetic disorder and increases exciton diffusion length in the PM6:Y6 blend. Ternary devices achieve a champion power conversion efficiency of 17.2%, higher than that of PM6:Y6 (15.9%).
Topics & Concepts
ExcitonDiffusionTernary operationMaterials sciencePolymerEnergy conversion efficiencyOrganic solar cellChampionChemical physicsChemical engineeringOptoelectronicsCondensed matter physicsThermodynamicsChemistryComposite materialPhysicsLawPolitical scienceComputer scienceEngineeringProgramming languageOrganic Electronics and PhotovoltaicsConducting polymers and applicationsPerovskite Materials and Applications