星形三核环金属铱 铂配合物磷光材料的合成及性能分析-synthesis and properties analysis of star-shaped trinuclear ring metal iridium platinum complex phosphorescent materials.docxVIP

时，器件在不同电压下，获得了稳定的白光发射，其中掺杂浓度为1wt%，电压为14V时，器件的色坐标为(0.34,0.33)。器件的最大亮度为219.2cd/m2，最大发光效率为0.07cd/A。因此，这些星形三核环金属铱、铂配合物是一类很有发展前景的单分子电致白光材料。本论文的研究工作为进一步开展单分子白光材料的合成及其性能研究起到了积极的推动作用。关键词：电致磷光；星形三核环金属铱/铂配合物；激基缔合物；白光有机电致发光二极管AbstractResearchadvancesinorganicelectrophosphorescentmaterialsandtheirwhiteorganicpolymericlight-emittingdevices(WOLEDs/WPLEDs)werereviewedinthisdissertation.Tosolveaseriesofproblems,suchasfewtypesofmaterials,concen-trationquenching,poorperformanceinWOLEDs/PLEDs,wedesignedandsynthesiz-edthreeseriesofstar-shapedhomotrinuclearcyclometalatediridium/platinumcomplexes,Theirmolecularstructureswereconfirmedby1HNMR,13CNMRandelementalanalysis.Thethermal,photophysical,electrochemicalandelectrolumine-scentpropertiesofthesestar-shapedhomotrinuclearcyclometalatediridium/platinumcomplexeswerestudied.Asthestar-shapedmoleculeshavelargesterichindrancetocontroltheexcimersformationanddecreasequenching,thesestar-shapedhomotri-nuclearcyclometalatedplatinumcomplexesexhibitedwhite-emissioninthePLEDs.Thekeystudiesresultsofthispaperarelistedbelow:Fourstar-shapedhomotrinuclearcyclometalatediridium(III)/platinum(II)complexesbasedonabenzene-1,3,5-trioxycoreweresynthesized.Theresultsshowedthatthestar-shapedmolecularstructureisnotonlyavailableforimprovingthedispersibilityofthecomplexesinthehostmatrix,butalsocontro-llingexcimeremissionintheneatfilms.Introducingaalkylchainoraelectron-withdrawinggroupofCF3tothecyclometalatedligandshasagreatinfluenceontheluminouspropertyoftheresultingcomplexes.UsingPh-3FIr(pic)astheguestandablendofPVKandPBDasahostmatrix,thesingle-emissive-layer(SEL)-basedPLEDsexhibitedwhiteemissionsunderthevoltageof14Vat1wt%dopinglevel.TheirCIEcoordinateslocateat(0.33,0.39),veryclosedtoCIE(0.33,0.33)coordinateofthepurewhitelight.WhileusingPh-3FPt(pic)astheguestandPVK+PBDasahostmatrix,theSEL-PLEDspresentedwhiteemissionunderthevoltageof14Vat1wt%,2%and4%dopinglevels.TheirCIEcoordinateslocateat(0.30,0.28),(0.36,0.37)and(0.38,0.41),respectively.Inthissituation,thePLEDsexhibit