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1、OpticalMaterials33(2010)153–158ContentslistsavailableatScienceDirectOpticalMaterialsjournalhomepage:www.elsevier.com/locate/optmatBroadbanddown-conversionspectralmodificationbasedonenergytransferaabcd,*JiajiaZhou,YuTeng,SongYe,XiaofengLiu,JianrongQiuaStateKeyLaboratoryofSilico
2、nMaterials,ZhejiangUniversity,Hangzhou310027,ChinabVentureBusinessLaboratory,KyotoUniversity,Sakyo-ku,Kyoto606-8501,JapancStateKeyLaboratoryofHighFieldLaserPhysics,ShanghaiInstituteofOpticsandFineMechanics,ChineseAcademyofSciences,Shanghai201800,ChinadSouthChinaUniversityofTe
3、chnology,InstituteofOpticalCommunicationMaterials,Guangzhou510640,ChinaarticleinfoabstractArticlehistory:Broadbanddown-conversionspectralmodificationattractsourattentionfollowedbynarrowbanddown-Received31May2010conversionduetoitsapplicabilityforsolarcells.Thisarticlereviewsont
4、herecentresearchdevelopmentReceivedinrevisedform31July2010onbroadbanddown-conversionspectralmodificationbasedonenergytransfer:(1)f–dtransitionrareAccepted6August20102+3+2+3+earthionsincludingEu,CeandYbtoYb;(2)othersensitizerincludingheavymetalionsandhost3+latticeabsorptiontoYb
5、.Themechanismsofenergytransferandthepossibilitiesofefficientnear-infra-redemissionareanalyzed.WealsopointoutsomeproblemsneedfurtherdevelopmentonbroadbandKeywords:down-conversionspectralmodification.BroadbandÓ2010ElsevierB.V.Allrightsreserved.Down-conversionEnergytransfer1.Intro
6、ductionDown-conversionisdefinedasaprocessthateachhigh-energyphotonimpingingonaDClayer,whichoverliesthesolarcell,re-Energyproblemwillbeworkingonoverthenextquarterofasultsintheemissionofmorethanonelow-energyphoton[5].Acenturyasoneofthemostchallengingscientificquestions[1].Ingoodw
7、aytoachieveDCistheenergytransferbyusingrareearthordertosolvetheproblemofenergycrisis,itisnecessarytoex-(RE)ions.TheuniqueandrichenergylevelstructureofREionsal-plorethepromisingapplicationofgreenandsustainableenergy.lowsforefficientspectralmodification,byenergytransferofAsaresul
8、t,solarenergyhasreceivedmuchattentioninrecentneighboringREions.Previ
