苝二酰亚胺类有机光电功能材料的制备与性能研究

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1、AbstractPerylenetetracarboxylicdiimide(PDI)derivativesareimportantmolecularbuildingblocksthatarecurrentlybeinginvestigatedforuseinavarietyofphotoactiveorganicmaterialsbecauseoftheirlowlightandthermalfadingrates，highluminescenceefficiency,wideabsorptionandemissionbandsinbothvisiblere

2、gion，andoptoelectronicproperties．Byvirtueoftheiruniqueopticalandelectricalproperties，organicmoleculesincorporatedwithelectrondonorandelectronacceptormoietieshavereceivedintenseaRemionbecauseoftheirpotentialapplicationsinnumerousfieldssuchaslight—emittingdiodes(LEDs)，field—effecttran

3、sistors(OFETs)，photovoltaiccells(PCs)andorganiclasers．etc．InthispaperPDIamphiphile1,7-·PyridinoylPerylene·-Diimidehasbeensynthesizedandintroductionof2-ethylhexanmideontotheN-positiontoenhancethesolubilityinorganicsolventandpyridineontothebay·positionashydrophilicgrouptobalancetheele

4、ctroniccloudofthewholemolecularofPDI．Meanwhile，theNatomofpyridinegroupcallbeprotonedbyHCltoproducedifferentmolecular．Inmethanol，wegetJ●●●●●■■■■■—●differentaggregationsindifferentconcentration．Thelevelofassemblylargedependsonthelevelofprotoned．Throughdynamicdissociationofbay-substitu

5、tedpyridiumchlorides，probedbythedistinctspectralfeaturesbeforeandafterprotonationofthebay-substitutedpyridines，wefindoutthattherelationoftheassemblyandtheHV-visandfluorescencespectrum．ThedifferentaggregationofPDlswascharacteredbySEM，TEM，CLSM．Thedynamicaoequilibriabetweentheprotonate

6、dandunprotonateddyesshowncapabilitytomodulateCO—assemblyofPDIdyes．Furthermore，5,5一dimethyl一2，2-dipyridinederivatesarealsosynthesizedinthiswhichhavealarge兀-conjugatesystem．Thederivatescoordinatewithdifferentpapertransitionmetalatoms(Cu,Ag，Co，Cd)，allofthecoordinationcompoundsshowdiffe

7、rentlights(ren，blue，andgreenarea)phenomenon，whichisrarelyseen．WealsocharacteredthefeaturebySEM，TEM，andCLSMthatarecoordinatewiththefluorescencespectrum．Keywords：supermolecular；self-assembly；Perylenetetracarboxylicdiimide；aggregation；protonate目录第一章综述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．1分子紫外吸收的基本原理⋯⋯⋯

8、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．1．1电