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二維鈣鈦礦太陽能電池光電流成像研究Title:ResearchonImagingofPhotocurrentinTwo-DimensionalPerovskiteSolarCellsAbstract:Two-dimensionalperovskitesolarcellshaveattractedsignificantattentioninrecentyearsduetotheiruniqueproperties,includinghighpowerconversionefficiencyandexcellentstability.However,understandingtheunderlyingmechanismsofchargetransportandcollectionwithinthesedevicesisstillachallenge.Inthisstudy,weinvestigatetheimagingofphotocurrentintwo-dimensionalperovskitesolarcells,aimingtoprovidevaluableinsightsintotheiroptoelectronicpropertiesandpotentialforfurtheroptimization.1.Introduction-Brieflyintroducetheconceptofperovskitesolarcellsandtheiradvantagescomparedtotraditionalsilicon-basedcells.-Highlighttheemergenceoftwo-dimensionalperovskitestructuresandtheirpotentialforimproveddeviceperformance.-Statetheobjectiveofthestudy,toexploretheimagingofphotocurrentintwo-dimensionalperovskitesolarcells.2.FabricationofTwo-DimensionalPerovskiteSolarCells-Describethemethodsandmaterialsusedforfabricatingtwo-dimensionalperovskitesolarcells.-Discusstheimportanceofpropersynthesisandfilmdepositiontechniquesinachievinghigh-qualityperovskitefilms.-Providedetailsofthedevicearchitectureandfabricationsteps,includingtheuseofvariouselectronandholetransportlayers.3.CharacterizationTechniques-Explainthecharacterizationtechniquesemployedtoevaluatetheperformanceandpropertiesoftwo-dimensionalperovskitesolarcells.-MentiontechniquessuchasX-raydiffraction,scanningelectronmicroscopy,andphotoluminescencespectroscopy.-Emphasizetheimportanceofcurrent-voltage(I-V)measurementstoquantitativelyassessthedeviceefficiency.4.PhotocurrentImaging-Discusstheprinciplesandtechniquesusedforimagingphotocurrentintwo-dimensionalperovskitesolarcells.-Explaintheapplicationofscanningphotocurrentmicroscopy(SPCM)andlock-inthermographytovisualizethespatialdistributionofphotocurrent.-Presentexperimentalresultsanddiscusstheinfluenceofvariousparameters,suchaslightintensityandilluminationwavelength,onthephotocurrentdistribution.5.OptoelectronicPropertiesandChargeTransport-Analyzetheobtainedphotocurrentimagingdatatogaininsightsintotheoptoelectronicpropertiesoftwo-dimensionalperovskitefilms.-Discusstheroleofdefects,grainboundaries,andcarrierrecombinationininfluencingchargetransportandcollectionefficiency.-Presentstrategiesforenhancingchargetransportproperties,suchasinterfaceengineeringandsurfacepassivation.6.PotentialforOptimizationandFuturePerspectives-Highlightthepotentialofimagingphotocurrentasatoolforoptimizingtheperformanceoftwo-dimensionalperovskitesolarcells.-Discusspossibleresearchdirectionsforfurtherimprovingthedeviceefficiencyandstability.-Outlinetheimportanceofunderstandingthefundamentalprocessesofchargetransportandcollectionforfutureadvancementsinperovskitesolarcelltechnology.7.Conclusion-Summarizethekeyfindingsofthestudyregardingtheimagingofphotocurrentintwo-dimensionalperovskitesolarcells.-Emphasizetheimportanceofthisresearchinadvancingtheunderstandingandoptimizationofperovskitesolarcelldevices.-Suggestpotentialareasforfutureresearchtoaddresstheremainingchallengesandimprovetheoverallperformanceofthesedevices.Inconclusion,thisresearchfocusesontheimagingofphotocurrentintwo-dimensionalperovskitesolarcellstogaininsightsintotheiroptoelectronicpropertiesand

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