High power-to-weight ratio,good radiation resistance,and low manufacturing cost enable perovskite solar cells(PSCs)to be possibly used in space[1].Different from terrestri-al applications,PSCs used in space will face cosmic radiation,e.g.,electrons,protons,neutrons,gamma rays,X-rays,ultravi-olet(UV)rays,etc.(Fig.1(a)),harming their long-term opera-tional stability.Electrons are the most common high-energy particles in space.A series of terrestrial experiments mimick-ing electrons in the space environment were carried out,show-ing that PSCs can be deteriorated upon exposure.Al-Jassim et al.elucidated two failure pathways for perovskite films un-der electron-beam(e-beam)exposure through cathodolumin-escence(CL)signals variation,which are knock-on-induced de-fect formation and heat-induced phase transformation[2].Gao et al.revealed the decomposition process of MAPbl3 under e-beam exposure by in-situ TEM[3].The structural change was ini-tiated by the loss of I ions to form MAPbl2.5,followed by the loss of MA ions to form MAyPbl2.5-z,and ended up with Pbl2(Fig.1(b)).Yan etal,observed severe short-circuit current dens-ity(JsC)decrease after electron exposure,which was mainly at-tributed to the reduced substrate transmittance caused by glass"coloring"(Fig.1(c))[4].Similar phenomenon was also ob-served when soda-lime glass was irradiated by protons[5]and gamma rays[6],thus the irradiation tolerance of space-used sub-strate is demanded.

Baoze Liu;Lixiu Zhang;Yan Jiang;Liming Ding

Songshan Lake Materials Laboratory,Dongguan 523808,China;Center for Excellence in Nanoscience(CAS),Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS),National Center for Nanoscience and Technology,Beijing 100190,China

半导体学报（英文版）

[1]Baoze Liu;Lixiu Zhang;Yan Jiang;Liming Ding-.Failure pathways of perovskite solar cells in space)[J].半导体学报（英文版）,2022(10):1-4

terrestri,ultravi,olet,mimick,Jassim,cathodolumin,MAPbl2,MAyPbl2,Pbl2,JsC

Failure,pathways,perovskite,solar,cells,space,High,power,weight,ratio,good,resistance,manufacturing,cost,enable,PSCs,possibly,Different,from,applications,will,face,cosmic,electrons,protons,neutrons,gamma,rays,UV,etc,Fig,harming,their,long,term,opera,tional,stability,Electrons,are,most,common,high,energy,particles,series,terrestrial,experiments,environment,were,carried,out,show,that,can,deteriorated,upon,exposure,elucidated,two,failure,films,beam,through,escence,CL,signals,variation,which,knock,induced,fect,heat,phase,transformation,Gao,revealed,decomposition,process,MAPbl3,under,by,situ,TEM,structural,change,was,ini,tiated,loss,followed,ended,Yan,etal,observed,severe,short,circuit,current,dens,decrease,after,mainly,tributed,reduced,substrate,transmittance,caused,glass,coloring,Similar,phenomenon,also,when,soda,lime,irradiated,thus,irradiation,tolerance,demanded

0.551433