材料科学与工程学院英语

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1、为了适应公司新战略的发展，保障停车场安保新项目的正常、顺利开展，特制定安保从业人员的业务技能及个人素质的培训计划材料科学与工程学院英语　　WhiteOrganicLight-EmittingDiodes　　Firstgradegraduate,opticalengineering,WangNing(P)Abstract:Asimplifiedwhiteorganiclight-emittingdiodes(WOLEDS)employingap-typeinterlayerisdesigned,simultaneouslyr

2、ealizinghighefficiency,highcolorrenderingindex(CRI),lowefficiencyroll-off,lowvoltageandstablecolor.Asflat-panellightsourcestheyareintrinsicallyglare-freeandgeneratelightoveralargearea.Buttheseimprovementsrequirejointresearcheffortsinchemistryandthematerialsscience

3、stodesignbettermaterialsaswellasinphysicsandengineeringtoinventnewdeviceconceptsanddesignsuitablefabricationschemes.ThisarticlereviewsitscurrentdevelopmentsinthefieldofWOLEDsandputsaspecialfocusonthefuturetrends.　　Keywords:WhiteOrganicLight-EmittingDiodes;color-re

4、nderingindex；externalquantumefficiency.　　1Introduction目的-通过该培训员工可对保安行业有初步了解，并感受到安保行业的发展的巨大潜力，可提升其的专业水平，并确保其在这个行业的安全感。为了适应公司新战略的发展，保障停车场安保新项目的正常、顺利开展，特制定安保从业人员的业务技能及个人素质的培训计划　　Deviceefficiencyisthesinglemostimportantparameterdescribingtheperformanceofanylightsource

5、andistypicallymeasuredinlumensperwatt(lmW?1),,theintegrallightoutputperconsumedelectricalpower.Thismeasurefortheefficiencyisaphotometricunit,meaningthatitisscaledtothesensitivityofthehumaneye.Itshouldthereforemorepreciselybereferredtoasluminousefficacy,althoughthe

6、termefficiencyiswidelyusedtoday.Anotherfrequentlyusedfigure-of-meritistheexternalquantumefficiency(EQE),,theaveragenumberofphotonsemittedperunitchargepassedthroughthedevice.目的-通过该培训员工可对保安行业有初步了解，并感受到安保行业的发展的巨大潜力，可提升其的专业水平，并确保其在这个行业的安全感。为了适应公司新战略的发展，保障停车场安保新项目的正常、顺

7、利开展，特制定安保从业人员的业务技能及个人素质的培训计划　　Inorderforlighttobeperceivedaswhitebythehumaneye,theemissionspectrumshouldcloselymatchthespectrumemittedbyanincandescentblackbodywithatemperaturebetween2500and6500K.[1]Forinstance,sunlighthasacolortemperatureof5800Kandthecolortemperat

8、ureoflightemittedbyincandescentlightbulbsrangesfromXXto3000K.TheemissioncolorcanalsobedescribedbytheCIE(CommisionInternationaledel’éclairage)coordinates