制备了采用9,10-di-(2-naphthyl)anthracene(ADN)作为主体,4-(dicya-nomethylene)-2-t-butyl-6(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran(DCJTB)作为红色发光中心,2,5,8,11-tetra-tertbutylperylene(TBPe)作为辅助掺杂剂的红光有机电致发光器件.4,4',4"-tris[2-naphthyl(phenyl)amino]triphenylamine(2TNATA)用作空穴注入材料,4,4'-bis[N-(1-naphthyl)-N-phenylamino]biphenyl(NPB),tris-(8-hydroxyquinoline)aluminum(Alq3)用于空穴和电子传输.实验结果表明,掺有DCJTB的ADN也可实现红色发光,掺入TBPe作为辅助掺杂.可以提高该红光器件的效率,但几乎不改变器件色坐标.此外,2%TBPe(质量分数)作为辅助掺杂的器件表现出最佳的流明效率和最大升温速率.
A red organic light emitting device with host 9,10-di-(2-naphthyl)anthracene (ADN) and red dopant 4-( dicyanomethylene)-2-t-butyl-6 ( 1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) and assist blue dopant 2,5,8,11-tetra-tertbutylperylene (TBPe) was fabricated,and 4,4',4"-tris[2-naphthyl(phenyl)amino]triphenylamine (2TNATA),4,4'-bis[N-(1-naphthyl)-N-phenylamino-]biphenyl (NPB),tris-(8-hydroxyquinoline) aluminum (Alq3) were used as hole injection,hole transportation,electron transportation materials,respectively.The results show that ADN doped with DCJTB can realize red emission as well,and the use of TBPe as assist dopant effectively enhance the device luminous efficiency,yet almost have no effects on CIE coordinates.Additionally,devices with 2% TBPe(mass fraction) appear optimum luminous efficiency and highest temperature increase rate.
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