Surfactant-Encapsulated Polyoxometalate Complex as a Cathode Interlayer for Nonfullerene Polymer Solar Cells

作     者：Jing Qiu Yue Zhang Yan Liu Huiru Liu Dongdong Xia Fan Yang Chaowei Zhao Weiwei Li Lixin Wu Fenghong Li 

作者机构：State Key Laboratory of Supramolecular Structure and MaterialsJilin UniversityChangchun 130012 Institute of Applied ChemistryJiangxi Academy of SciencesNanchang 330096 Beijing National Laboratory for Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190 College of ChemistryChemical Engineering and Materials ScienceCollaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of ShandongKey Laboratory of Molecular and Nano ProbesMinistry of EducationShandong Normal UniversityJinan 250014 State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical TechnologyBeijing 100029 

出 版 物：《CCS Chemistry》 (中国化学会会刊（英文）)

年 卷 期：2022年第4卷第3期

页      面：975-986页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by grants from the National Basic Research Program of China(no.2014CB643505) the Natural Science Foundation of Jilin Province,China(no.20170101169JC) the Open Project of the State Key Laboratory of Supramolecular Structure and Materials(no.sklssm202043) the Graduate Innovation Fund of Jilin University(no.101832020CX339) W.L.and C.Z.acknowledge the support from the Jiangxi Provincial Department of Science and Technology(nos.20192ACB20009 and 20192BBEL50026) 

主　　题：surfactant-encapsulated polyoxometalate complex nonfullerene polymer solar cells cathode interlayer device stability thickness-insensitive low-cost 

摘      要：An alcohol-soluble,environmentally friendly,and low-cost surfactant-encapsulated polyoxometalate complex[(C8H17)4N]4[SiW_(12)O40](TOASiW_(12))as a cathode interlayer(CIL)has exhibited excellent universality for various active layers and cathodes in nonfullerene polymer solar cells(NF-PSCs).In particular,incorporating TOASiW_(12) as the CIL enhanced power conversion efficiencies(PCEs)of the PM6:Y6-based NF-PSCs with Al or Ag cathode to 16.14%and 15.89%,respectively,and the PCEs of PM6:BTP-BO4Cl-based NF-PSCs with Al or Ag cathode to 17.04%and 17.00%,*** importantly,the performances of the devices with TOASiW_(12) were insensitive to the TOASiW_(12) thickness from 3 to 33 ***,the NF-PSCs with TOASiW_(12) exhibited better device *** characterization of the photocurrent density versus effective voltage,capacitance versus voltage and electron mobility demonstrated that TOASiW_(12) as the CIL effectively promoted exciton dissociation,charge-carrier extraction,built-in potential,charge-carrier density,and electron mobility in the *** findings suggest that TOASiW_(12) is a promising,competitive CIL for NF-PSCs fabricated by roll-to-roll processing.