le某高效散热与配光技术分析

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1、wegettheconceptofpointinglayersphosphor．Firstpreparationofhi曲powerLED，thencoatorganicmaterialDCJTBonphosphor．ItsproportionisO％、l％、2％、3％、5％、10％．Thenstudytheluminescentbytestingexcitationspectrum．Itisfoundthatpointinglayersphosphornotonlycanimprovetheluminescentproperties，

2、butalsocolorrenderingindexofLED．Meanwhile，wecanavoidtheabsorptionofDCJTBtoYAG：Ce，卜phosphorintheyellow-greenlightbypointinglayersphosphor．Tofurtherstudytheinfluenceofthe·organicthinfilmlayerforhi曲-powerLEDcolorrenderingindex，wedepositorganicmaterialAlq3：C545TandAlq3ontheg

3、lassbyvacuumevaporation．ThenirradiateorganicthinfilmAlq3：C545TandAlq3byhighpowerblueLED．ThenstudytheluminescentofAlq3：C545TtoblueLEDbytestingexcitationspectrumandtheluminescenceefficiencyoftheorganicthinfilmlayerbycomparingAlq3：C545TandAlq3．Theresultsshowthat：hi曲powerLED

4、canstimulateAlq3：C545Tgeneratingyellowandgreenspectrumandthespectrummovestowhiteregion．Therefore，organicmaterialAlq3：C545TCanimprovetheluminousefficiencyandluminousfluxofLEDsignificantly．OrganicmaterialC545TCaneffectivelyincreaseintheexcitationspectrumoftheyellowgreenreg

5、ion．Bythemethodofspin—coating，alayeroforganicmaterialMPPVdissolvedinorganicsolventTetrahydrofuran(邢)iscoatedonglass．TheradiosofMPPV：THFare"25mg-lml、50mg-lml、100mg：lml、150mg-lml．WeirradiateorganicthinfilmbyblueandwhiteLED．Thenstudytheluminescentbytestingexcitationspectrum

6、．Theresultsshowthat：withthemethodofblueandwhiteLEDexcitingtheorganicmaterialMPPV,thecolor-renderingindexandluminescentpropertiesofLEDCanbeimprovedsignificantly．Therefore，organicmaterialMPPVCanabsorbtheenergyofLEDchipandhaslittleabsorptiontothegreenregionexcitedbytheYAG：C

7、e，卜phosphor．KEYWORDS：LightEmittingDiode，ThermalManagement，OrganicMaterial，Color-renderingIndex，LuminescenceIV目录摘要⋯⋯⋯．：⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯：⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯IABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯：⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯III1绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．1LED的

8、发展历史及国内外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1．1LED的发展历史⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．1．2LED国外研究现状及发展概况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯