有机光电半导体材料及其未来之应用

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1、有機光電半導體材料及其未來之應用InstituteofElectro-OpticalScienceandEngineering,NationalChengKungUniversity,Tainan,Taiwan701成功大學光電科學與工程研究所01/16/2007郭宗枋助理教授OutlinesSemiconductorsOrganicsemiconductors(energyanddelocalizationofchargecarriers)OLEDsandPLEDs基礎原理和應用Organnicphotovoltaic

2、andsolarcellsConclusionsT.-F.Guo2NCKUInstititeofElectro-OpticalScience&EngineeringFundamentalscienceofinorganicsemiconductorsT.-F.Guo3NCKUInstititeofElectro-OpticalScience&EngineeringTypicalSemiconductingMaterialsT.-F.Guo4NCKUInstititeofElectro-OpticalScience&Eng

3、ineeringEnergyBandDiagramofaconductor,semiconductor,andinsulator(a)aconductor(b)asemiconductor(c)aninsulatorT.-F.Guo5NCKUInstititeofElectro-OpticalScience&EngineeringBeginningoforgnaicsemiconductor(πbonding)Side-by-SideBondingT.-F.Guo6NCKUInstititeofElectro-Optic

4、alScience&EngineeringConjugated(共軛):alternativelydouble-singlebondsCHCHCHCHCHCH雙鍵單鍵T.-F.Guo7NCKUInstititeofElectro-OpticalScience&EngineeringBangGapofPolyacetylene………..……BandGapT.-F.Guo8NCKUInstititeofElectro-OpticalScience&EngineeringConjugatedpolymerSigmabondDe

5、localizedelectroncloudhttp://www.cdtltd.co.ukAlternatingsingle-doublebondsT.-F.Guo9NCKUInstititeofElectro-OpticalScience&EngineeringCreatingnewmaterialsfromoldmaterialsnEg=2.4eVPPVOR1nOEg=2.1eVR2R1nEg=2.4eVR2nEg=3.0eVPPPnEg=1.4eVPAThroughthestructureengineering,

6、polymerswithdifferentemittingcolorsweresynthesized.T.-F.Guo10NCKUInstititeofElectro-OpticalScience&EngineeringDelocalizationofChargeCarriersinPolyacetyleneLocalized!Chargecannotgoanywhere!!!Delocalized!Chargecarrierscanmovearound!!!T.-F.Guo11NCKUInstititeofElectr

7、o-OpticalScience&EngineeringDelocalizationandTransportofChargeCarriersT.-F.Guo12NCKUInstititeofElectro-OpticalScience&EngineeringConjugatedPolymers:BasicMaterialsandChemistryConductionpolymers:Polyacetylene,Polyaniline,PEDOT/PSS…etc.Semiconductingpolymers:Polythi

8、ophenes,Oligothiophenes…etc.Light-emitting/PhotovoltaicPolymers:Poly-(para-phenylene-vinylene),Poly(para-phenylene),Polyfluorene…etc.T.-F.Guo13NCKUInstititeofE