摻雜型聚合物發光電化學池的研究.pdf

1、北京交通大學碩士學位論文摻雜型聚合物發光電化學池的研究姓名：李揚舟申請學位級別：碩士專業：光學指導教師：滕楓20071201IE塞躉適左堂亟堂籃途塞△曼S!B△￡!ABSTRACTABSTRACT：Apolymerlight—emittingelectrochemicalcell(LEC)offersanalternativeapproachtoachievingelectroluminescence(EL)fromconjugated

2、polymersDifferentfromapolymerlight—emittingdiode(PLED)，theemittinglayerofLECcontainsionicconductorsuchaspoly(ethyleneoxide)(PEO)mixedwithlithiumsaltInthesesolidstateLECs，theconjugatedpolymersarepdopedontheanodesideandndo

3、pedonthecathodesideandalight—emittingpnjunctionisformedbetweenthepdopedandndopedregionsTheLECwasshowntooperateinbothforwardandreversebias，effectivelyindependentoftheelectrodeworkfimctionComparedwithPLED，LEChastheadvantag

4、esoflowtumonvoltageandhighquantumefficiencyofitselectroluminesceneeInthisworkatraditionalfilm乙ECdeviceisfabricatedandamethodtobuildthick—filmLECissuggestedBymixingmetallicparticlesintoanelectrolyte／electroluminescentcomp

5、ositepolymerfilm，light—emittingpnjunctionsareformedinsitubyelectrochemicalP—andn—dopingrandomlyThisdeviceoffersasubstructuretoachieveorganicphotovoltaicdevicewithhighopencircuitTheluminescenceofLECbasedonemittingmaterial

6、dopedwithdifferentdyehasbeenresearchedDopingorganicdyeintotheluminescentmaterialsofLECmaychangethewavelengthofdeviceandfabricateLECswithvariouswavelengths，eventhewhiteemittingLECsReddyeDCJTBisdopedintoMEH—PPVthenaLECdevi

7、cewithasandwichstructureofITO／MEH—PPVPEOLiCF3S03DCJTB／AlisfabricatedELpeakwavelengthoftheLECdevicesrangesfrom570nnlto650nrrlcontinuouslydependingonthedopingconcentrationofDCJTBInthePLspectrawiththeexcitationwavelengthofM

8、EH—PPV，itisobservedthattheemissionfromMEH—PPVdecreaseandDCJTBincreasewiththeriseofthedopedDCJTBmassconcentrmionThisindicatesthatenergytransferOccurfromMEH—PPVtoDCJTBTheredshiRofDCJTB’semissioncausebyitsconcentrationincre

9、aseisanotherfactorforthephenomenaUsinggreenemittingmaterialPoly[(BEHP—PPV)一co一(MEH—PPV)】astheluminescentmaterialsofLEC，agreenemittingLECisfabricatedandsimilarphenomenonisobservedwhentheDCJTBWasdopedintothehostmaterialint