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1、PreparationandresearchofnanocompositematerialswithsiliconeresinofLEDsAbstract：Energycrisisandenvironmentalpollutionaretwomajorchallengesfacingthecurrenthuman,alsoisourcountrytocarryoutthestrategyofsustainabledevelopmentmustbeapriorityformajorissue,todevelopnewenergyte
2、chnologiesandrenewableandalternativeenergy,andistheglobalstrategysolvestheenergyshortage.LightEmittingDiode(LED)havedrawnmuchattentionowingtotheirexcellentproperties,suchashighluminousefficiency,lowpowerconsumption,environmentfriendly,reliability,longlifeandsoon.There
3、fore,LEDisexpectedinthefourthgenerationoflightingsource.TheLEDgeneralconsistsofLEDchip,bracket,encapsulant,goldthreadandsoon.Oneofthefundamentallimitationsinthedevelopmentoflight-emittingdiodesLEDsisthelightextractionefficiencyofLEDs.Duetothebigdifferencebetweenthechi
4、pandtheencapsulant,itwillleadtheangleofthelightescapeconeissmallandlightenergyconversionintoheat.InordertoimprovethelightextractionefficiencyofLEDs,thehighrefractiveindexofpackagingmaterialisneeded.Theresearchshowsthatthenanoparticlesintotheencapsulant,andpreparethena
5、nocompositeastheLEDencapsulant.Itcanimprovetherefractiveindexofencapsulant,andeffectivelypromotethelightextractionefficiencyofLEDs.Inthispaper,thenanoTiO2isusedasthedopantparticlesintoencapsulant,andweinvestigatethepropertiesofnanocomposite.Thentakenanocompositeapplyi
6、nLEDpackaging,andcomparetheone’swhichhadnonanoTiO2doppedin.Themainworkcontentsarefollowing:1.TheCarloMontemethodisusedtosimulatethemovingprocessofthephotoninnanocomposites,andthecharacteristicsofnanoparticlesinnanocompositematerialswerestudied.Intheresearch,thescatter
7、ingcoefficientofthenanocompositematerialisfoundtoaffectthetransmittanceofthematerial,andthecoefficientofthematerialishigher,thephotonscatteringisstronger.ThescatteringIII万方数据coefficientofnanocompositeisaffectedbytheradiusandconcentrationofnanoparticlesTheradiusislarge
8、rortheconcentrationishigher,thevalueofscatteringcoefficientishigher.Eventuallyitwillmakethetransmittanceofnanocompositegolow
