文献类型：期刊文献

英文题名：Overcoming C60-induced interfacial recombination in inverted perovskite solar cells by electron-transporting carborane

作者：Ye, Fangyuan[1,2,3];Zhang, Shuo[1,2];Warby, Jonathan[3];Wu, Jiawei[4,5];Gutierrez-Partida, Emilio[3];Lang, Felix[3];Shah, Sahil[3];Saglamkaya, Elifnaz[3];Sun, Bowen[3];Zu, Fengshuo[6,7];Shoaee, Safa[3];Wang, Haifeng[4,5];Stiller, Burkhard[3];Neher, Dieter[3];Zhu, Wei-Hong[1,2];Stolterfoht, Martin[3];Wu, Yongzhen[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Frontiers Sci Ctr Materiobiol & Dynam Chem, Inst Fine Chem,Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Joint Int Res Lab Precis Chem & Mol Engn, Frontiers Sci Ctr Materiobiol & Dynam Chem, Inst Fine Chem,Sch Chem & Mol Engn,Shanghai Key L, Shanghai 200237, Peoples R China;[3]Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany;[4]East China Univ Sci & Technol, Ctr Computat Chem, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[5]East China Univ Sci & Technol, Sch Chem & Mol Engn, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China;[6]Humboidt Univ Berlin, Inst Phys, Brook Taylor Str 6, D-12489 Berlin, Germany;[7]Humboidt Univ Berlin, Iris Adlershof, Brook Taylor Str 6, D-12489 Berlin, Germany

年份：2022

卷号：13

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000934495300025)】；

基金：This work was supported by the National Natural Science Foundation of China (22179037), Shanghai Municipal Science and Technology Major Project (2018SHZDZX03, 21JC1401700), Programmer of Introducing Talents of Discipline to Universities (B16017), and Fundamental Research Funds for the Central Universities. We acknowledge HyPerCells (a joint graduate school of the University of Potsdam and the Helmholtz-Zentrum Berlin) and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)-SPP 2196 (project number 423749265-SURPRISE and 424709669-HIPSTER)-SFB951 (project number 182087777) for funding. We also acknowledge financial support from the Federal Ministry for Economic Affairs and Energy within the framework of the 7th Energy Research Program (P3T-HOPE, 03EE1017C). Additional funding came from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Projektnummer 491466077. M.S. further acknowledges the Heisenberg program from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for funding-project number 498155101. Y.W. thank the Research Center of Analysis and Test of East China University of Science and Technology for the help on NMR and FTIR analysis.

语种：英文

摘要：Inverted perovskite solar cells still suffer from significant non-radiative recombination losses at the perovskite surface and across the perovskite/C-60 interface, limiting the future development of perovskite-based single- and multi-junction photovoltaics. Therefore, more effective inter- or transport layers are urgently required. To tackle these recombination losses, we introduce ortho-carborane as an interlayer material that has a spherical molecular structure and a three-dimensional aromaticity. Based on a variety of experimental techniques, we show that ortho-carborane decorated with phenylamino groups effectively passivates the perovskite surface and essentially eliminates the non-radiative recombination loss across the perovskite/C-60 interface with high thermal stability. We further demonstrate the potential of carborane as an electron transport material, facilitating electron extraction while blocking holes from the interface. The resulting inverted perovskite solar cells deliver a power conversion efficiency of over 23% with a low non-radiative voltage loss of 110mV, and retain >97% of the initial efficiency after 400h of maximum power point tracking. Overall, the designed carborane based interlayer simultaneously enables passivation, electron-transport and hole-blocking and paves the way toward more efficient and stable perovskite solar cells. Effective transport layers are essential to suppress non-radiative recombination losses. Here, the authors introduce phenylamino-functionalized ortho-carborane as an interfacial layer, and realise inverted perovskite solar cells with efficiency of over 23% and operational stability of T97=400h.