中位四(1-苯基吡唑-4-基)卟啉掺杂空穴传输材料的红色有机电致发光器件(英文)  

Red-Emitting Organic Electroluminescent Devices with Tetrakis(1-phenylpyrazol-4-yl)porphyrin Doped into a Hole-Transporting Material

作　　者：任铁钢[1] 补朝阳 

机构地区：[1]河南大学化学化工学院,河南开封475001 [2]新乡师院化学系,河南新乡453000

出　　处：《化学研究》2007年第2期28-31,共4页Chemical Research

摘　　要：使用中位-四(1-苯基吡唑-4-基)卟啉(TPPyPH2)掺杂空穴传输材料N,N′-二苯基-N,N′-双(4-甲苯基)-1,1′-二苯基-4,4′-二胺(TPD)制备了红色有机电致发光器件.因为TPD的发射光谱与TPPyPH2的吸收光谱具有更大的光谱重叠,为了得到更为有效的从主体材料TPD向红光染料TPPyPH2的能量传递,我们使用TPD代替传统的8-羟基喹啉铝(Alq3)作为主体发光材料.器件在680nm处具有纯的红光发射峰;通过使用Alq3电子传输层以及使用Alq3共掺杂发光层的方法,使器件的发光性能得到了改善,结构为ITO/Alq3+TPPyPH2+TPD(50nm)/Alq3(30nm)/Al的器件的最大发光亮度为177cd/m2.Red-emitting organic electroluminescent devices were constructed with meso-tetrakis （1- phenylpyrazol-4-yl） porphyrin （TPPyPH2 ） doped into a hole-transporting material N, N＇-diphenyl-N, N＇-bis（4-methylphenyl）-1, l＇-biphenyl-4,4＇-diamine （TPD）. To achieve efficient energy transfer from the host to the red-emitting dopant TPPyPH2, TPD was used as a host material instead of conventional tris （ 8 -hydroxyquinoline） aluminum （ Alq3 ） because there is a large spectral overlap between TPD emission and TPPyPH2 absorption. These devices emitted a good red band with a peak at approximately 680 nm. Device performance was improved by using an electron transporting layer of Alq3 as well as the Alq3 co-doped in emitting layer, and a maximum luminance of 177cd/m^2 was obtained for the device structure ITO/Alq3 ＋ TPPyPH2 ＋ TPD （50 nm）/Alq3, （ 30 nm）/Al.

关 键 词：中位-四(1-苯基吡唑-4-基)卟啉 Frster能量传递 有机电致发光 红光发射 

分 类 号：TN383.1[电子电信—物理电子学]