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典型文献
Facile lattice tensile strain compensation in mixed-cation halide perovskite solar cells
文献摘要:
Despite the rapid development of power conversion efficiency(PCE)for halide perovskite solar cells(PSCs),the lattice strain engineering in perovskite thin films has been rarely probed in recent years.Herein,a strain compensation by homogeneous crystallization in perovskite films is achieved with the aid of precursor aging in the mixed-cation perovskite of Cs0.05(FA0.83MA0.17)Pb(I0.90Br0.10)3 with near 20%PCE in inverted devices.The homogeneous crystallization releases the residual tensile stress and induces more compressive stress at the edges of perovskite films,thus elongating the carrier lifetime and reducing the trap-assisted carrier recombination.The high dependence on the perovskite components in strain engineering strategy was systematically revealed,wherein MAPbl3 and Cs0.05(FA0.83MA0.17)Pbl3 film showed an increased compressive strain and FAPbI3 film showed adverse tensile strain after aging.The density functional theory(DFT)calculations are further performed to reveal the change of electronic features.The precursor aging-induced strain modulation was correlated with a systematic characterization of the charge carrier transport and recombination dynamics in the mixed-cation perovskite films.We believe that this facile approach provides a novel strain engineering strategy for PSCs technology.
文献关键词:
作者姓名:
Shurong Wang;Jie Hu;Aili Wang;Yuying Cui;Bin Chen;Xiaobin Niu;Feng Hao
作者机构:
School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu 611731,Sichuan,China
文献出处:
引用格式:
[1]Shurong Wang;Jie Hu;Aili Wang;Yuying Cui;Bin Chen;Xiaobin Niu;Feng Hao-.Facile lattice tensile strain compensation in mixed-cation halide perovskite solar cells)[J].能源化学,2022(03):422-428
A类:
83MA0,90Br0,Pbl3
B类:
Facile,lattice,tensile,strain,compensation,mixed,cation,halide,perovskite,solar,cells,Despite,rapid,development,power,conversion,efficiency,PCE,PSCs,engineering,thin,films,has,been,rarely,probed,recent,years,Herein,by,homogeneous,crystallization,achieved,aid,precursor,aging,Cs0,FA0,I0,near,inverted,devices,releases,residual,stress,induces,more,compressive,edges,thus,elongating,carrier,lifetime,reducing,trap,assisted,recombination,high,dependence,components,strategy,was,systematically,revealed,wherein,MAPbl3,showed,increased,FAPbI3,adverse,after,density,functional,theory,DFT,calculations,further,performed,change,electronic,features,induced,modulation,correlated,characterization,charge,transport,dynamics,We,believe,that,this,facile,approach,provides,novel,technology
AB值:
0.531784
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