Defective MWCNT Enabled Dual Interface Coupling for Carbon-Based Perovskite Solar Cells with Efficiency Exceeding 22

Yudi Wang; Wenrui Li; Yanfeng YinMinhuan WangWanxian CaiYanying ShiJingya GuoWenzhe ShangChunyang ZhangQingshun DongHongru MaJing LiuWenming TianShengye JinJiming BianYantao Shi

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Defective MWCNT Enabled Dual Interface Coupling for Carbon-Based Perovskite Solar Cells with Efficiency Exceeding 22

机译：Defective MWCNT Enabled Dual Interface Coupling for Carbon-Based Perovskite Solar Cells with Efficiency Exceeding 22

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摘要

Suffering from sluggish charge transfer kinetics, carbon-based perovskitesolar cells (C-PSCs) lag far behind the Ag/Au-based normal PSCs in powerconversion efficiency (PCE). Herein, the use of defective multi-walled CNT(D-MWCNT) is demonstrated to tune the charge transfer kinetics regardinghole transport layer (HTL) and the interface between HTL and carbon electrode.Benefiting from the electrostatic dipole moment interaction between theterminal oxygen-containing groups of D-MWCNT and 2,2′,7,7′-tetrakis(N,Ndi-p-methoxyphenylamine)-9,9′-spirobifluorene, an interface coupling atmolecular level is established and in turn, allows rapid charge transfer byedge effect induced electron redistribution and 1D hyper-channels. Meanwhile,a seamless connection between HTL and carbon electrode is achievedin a novel modular C-PSCs due to D-MWCNT induced interface coupling withgraphene at nanometer scale. Based on this strategy, high PCEs up to 22.07(with a certified record PCE of 21.9 to date for C-PSCs) and excellent operationalstability have been achieved.

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《Advanced functional materials》 |2022年第31期|2204831.1-2204831.11|共11页
作者
Yudi Wang; Wenrui Li; Yanfeng YinMinhuan WangWanxian CaiYanying ShiJingya GuoWenzhe ShangChunyang ZhangQingshun DongHongru MaJing LiuWenming TianShengye JinJiming BianYantao Shi;
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State Key Laboratory of Fine ChemicalsDepartment of ChemistrySchool of Chemical EngineeringDalian University of Techn;

State Key Laboratory of Molecular Reaction Dynamics andthe Dynamic Research Center for Energy and Environmental MaterialsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023, P. R. China,School of MicroelectronicsKey Laboratory of;

School of MicroelectronicsKey Laboratory of Materials Modification by LaserIon and Electron Beams (Ministry of Education)School of PhysicsDalian University of Technology2 Ling Gong Rd., Dalian 116024, P. R. ChinaState Key Laboratory of Molecular Reaction Dynamics andthe Dynamic Research Center for Energy and Environmental MaterialsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023, P. R. ChinaState Key Laboratory of Fine ChemicalsDepartment of ChemistrySchool of Chemical EngineeringDalian University of Techn,State Key Laboratory of Molecular Reaction Dynamics andthe Dynamic Research Center for Energy and Environmental MaterialsDalian Institute;

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band alignment; carbon-based perovskite solar cells; defective regulation; electrostatic dipole moment interactions; interface coupling; multi-walled carbon nanotubes; stability;

Defective MWCNT Enabled Dual Interface Coupling for Carbon-Based Perovskite Solar Cells with Efficiency Exceeding 22

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