闽江学院学报
閩江學院學報
민강학원학보
JOURNAL OF MINJIANG UNIVERSITY
2012年
2期
108-111
,共4页
电子传输层%磷光染料%有机电致发光二极管
電子傳輸層%燐光染料%有機電緻髮光二極管
전자전수층%린광염료%유궤전치발광이겁관
electron transport layer%phosphorescence dye%organic light emitting diodes
试验制作了以TPBI作为电子传榆层,以不同浓度磷光染料(PPQ)2Ir(acac)掺杂聚芴作为发光层的器件,研究了电子传输层对红光磷光染料聚合物器件的发光性能影响.器件的电流密度一电压的特性,发光亮度一电压特性,器件电致发光光谱发光效率一电流密度特性表明电子传输层的引入可以显著降低器件的工作电压和提高发光效率.这些性能的提高是由于TPBI有效的空穴阻挡作用.
試驗製作瞭以TPBI作為電子傳榆層,以不同濃度燐光染料(PPQ)2Ir(acac)摻雜聚芴作為髮光層的器件,研究瞭電子傳輸層對紅光燐光染料聚閤物器件的髮光性能影響.器件的電流密度一電壓的特性,髮光亮度一電壓特性,器件電緻髮光光譜髮光效率一電流密度特性錶明電子傳輸層的引入可以顯著降低器件的工作電壓和提高髮光效率.這些性能的提高是由于TPBI有效的空穴阻擋作用.
시험제작료이TPBI작위전자전유층,이불동농도린광염료(PPQ)2Ir(acac)참잡취물작위발광층적기건,연구료전자전수층대홍광린광염료취합물기건적발광성능영향.기건적전류밀도일전압적특성,발광량도일전압특성,기건전치발광광보발광효솔일전류밀도특성표명전자전수층적인입가이현저강저기건적공작전압화제고발광효솔.저사성능적제고시유우TPBI유효적공혈조당작용.
The phosphorescent organic light-emitting devices (OLEDs) with TPBI as a electron transport layer (ETL) employing Bis(2,4-diphenylquinolyl-N, C^2' ) iridium(acetylacetonate) E (PPQ) 2Ir( aeae ) ] as the guest and a poly (9.9-dioetyl flilorene) (PFO)as the host have been reported. Current density-voltage characteristics, luminance-voltage characteristics of light-emitting device EL spectrum efficiency-cur- rent density characteristics show the introduction of ETL can effectively reduce the driving voltage and enhance the efficiency of device. These improvements are attributed to effective hole blocking of TPBI.