Yellow electrophosphorescent devices with hosts containing N<sup>1</sup>-(naphthalen-1-yl)-N<sup>1</sup>,N<sup>4</sup>-diphenylnaphthalene-1,4-diamine and tetraphenylsilane units
作者:Song Zhang、Qiu-Lei Xu、Yi-Ming Jing、Xuan Liu、Guang-Zhao Lu、Xiao Liang、You-Xuan Zheng、Jing-Lin Zuo
DOI:10.1039/c5ra02475g
日期:——
Ir(bt)2(acac) (bis(2-phenylbenzothiozolato-N,C2′)iridium(acetylacetonate)) as an emitter, yellow phosphorescent organic light-emitting diodes of ITO/TAPC (1,1-bis[4-(di-p-tolylamino)phenyl]cyclohexane, 40 nm)/host: Ir(bt)2(acac) (15 wt%, 20 nm)/TmPyPB (1,3,5-tri(m-pyrid-3-yl-phenyl)benzene, 40 nm)/LiF (1 nm)/Al (100 nm) show maximum current and power efficiency of 40.81 cd A−1 and 33.60 lm W−1 with low efficiency
两种新型主体材料,N 1-(萘-1-基)-N 1,N 4-二苯基-N 4-(4-(三苯基甲硅烷基)苯基)萘-1,4-二胺(SiP)和N 1-(萘-1-基)-N 1,N 4-二苯基-N 4-(3-(三苯基甲硅烷基)苯基)萘-1,4-二胺(SiM)是通过结合空穴传输部分N 1-来合成的。 (萘-1-基)-N 1,N 4-二苯基萘-1,4-二胺(NPNA2)和典型的电子传输四苯基硅烷部分。SiP和SiM材料具有较高的热和形态稳定性,玻璃化转变温度高于110°C,分解温度高于350°C。使用Ir(bt)2(acac)(双(2-苯基苯并噻唑并-N,C 2 ')铱(乙酰丙酮))作为发射体,ITO / TAPC(1,1-bis [4 -(二-对甲苯甲氨基)苯基]环己烷,40 nm)/主体:Ir(bt)2(acac)(15 wt%,20 nm)/ TmPyPB(1,3,5-tri(m -pyrid -3 40