盤狀液晶分子的結(jié)構(gòu)和電學(xué)性能研究.pdf

1、Y1081004中圖分類號UDC：學(xué)校代碼：10004密級：公開北京交通大學(xué)碩士學(xué)位論文盤狀液晶分子的結(jié)構(gòu)和電學(xué)性能研究Structureandelectricalpropertiesofdiscoticliquidcystals作者姓名：王婷婷導(dǎo)師姓名：王永生何志群學(xué)化類別：理學(xué)學(xué)科專業(yè)：光學(xué)北京交通大學(xué)學(xué)號：04121520職稱：教授學(xué)位級別：碩士研究方向：盤狀液品材料特性研究北京交通大學(xué)碩士畢業(yè)論文ABSTRACTABSTRACT

2、DiscoticliquidcrystalwithelectronrichcoIescanbeselrfassembledintocoinmuarmesophaseviaintcrmolecularinteractionThecolumnsarrangeinorderwhichcao∞sahighchargetransportingpropertyIthasfoundtheirpotentialstObeusedinphotocondu

3、ctivedevices，organiclightemittingdiodes，solarcells，etcPhthalooyanines(Pcs)arearomaticcompoundshavingsemiconductingproperties111ey啪thermallyandchemicallystablehavingpromisingapplicationinoptoelectronicdevicesTheresearchon

4、theelectricalpropertiesofPcscanbetracedbackto1970sAlthoughtlleyhavebeenwidelydevelopedasphotoconducto幅，theirapplicationsinotheroptoelectronicdeviceswererarelyreportedInrecentyearsthepracticaluscofphthalocyaninecompoundsh

5、avereceivedincreasingattentionbecauseoftheirimportanceasprototypesemiconductorsandtheiraseSintechnologicalapplicationsinwhichPcscallbeusedasholetransportlayersorinjectionlayersInthisworkweusedCopperPhthalocyaninesderivat

6、ivesdopedwithpolymersOurresearchfocusedonthecontrollingoftheprocessingandstructureofsuchmaterialsandtheirapplication髂optoclcctronicdevicesThedetailsare：ThecrystalstructaresofsidechainedCuPcderivatives，OoCu_PcandtbCuPc，an

7、dtheirmixedfilmswithpolymerswe糟studiedbyXraydiffractionBoththepowdertbCuPcandpowderOoCuPchaveorientedinacertaindegreeTheXRDpatternsofmixedthinfilmsoftbCuPcandPMMAshowthatahexagonalstackformedinthemoleculesaggregationWith

8、theincreasingPMMAcontentthelongrangeorderinthefilmsdecreasesThencomparingseveraldifferentheattreatmentsonthefilmstheresultsindicatethatkeepingthesamplesat125“(2fortwohoursanddecreasingthetemperatureslowlytotheroomtempera

9、turearcpropitioustomakingthehexagonalstackperfectTheooCuPcdoesnotformthehexagonalstackdudngthefilmmakingprocessButafterheattreatmentitformshexagonalsmcLTheelectricpropertyofthedopedpolymerfilmsarcpreparedbyspincoatingWCl

10、echaracterizedbydirectcurrentvoltageandACimpedancemeasurementsThecontactbetweenelectrodeandmaterialsisohmiccontactWiththechargeinjection，itchangestothehoppingconductionTheintroductionofPChasaneffectonthealignmentofooCuPc