【摘 要】
：
Photo-physical properties of iridium complexes bis(1-(2,4-difluorobiphenyl-4-yl)isoquinoline)iridium(Ⅲ)(5-(4-(bis(4-methoxyphenyl)amino)phenyl)picolinic acid)
【机 构】
：
Science College, Hunan Agricultural University, Changsha 410128
论文部分内容阅读
Photo-physical properties of iridium complexes bis(1-(2,4-difluorobiphenyl-4-yl)isoquinoline)iridium(Ⅲ)(5-(4-(bis(4-methoxyphenyl)amino)phenyl)picolinic acid) used as phosphorescent dopant in polymer light-emitting devices with a blend of poly(9,9-dioctylfluorene) and 2-tert-butyl-phenyl-5-biphenyl-1,3,4-oxadiazole as a host matrix are investigated.The iridium complex exhibits distinct UV-vis absorption bands around 300 450 nm and intense red photoluminescent emissions peaked at around 618nm in dichloromethane.The devices display a maximum exteal quantum efficiency of 4.8％ and luminous efficiency of 3.1 cd·A-1 at current density of 3.2mA·cm-2 with a dominant red emission peak around 620nm and a shoulder around 660nm.At 100mA·cm-2,the devices still display a maximum exteal quantum efficiency as high as 3.9％.
其他文献
The influence of surface/interface roughness on the magnetic properties of Fe/Ni multilayers is investigated.Two methods are employed to tune the film roughness
We present a quantum hyperdense coding protocol with hyperentanglement in polarization and spatial-mode degrees of freedom of photons first and then give the de
The SU(3) quadrupole-quadrupole interaction is replaced by the SO(6) cubic[Q(0) × Q(0) × Q(0)]0 interaction in fitting energy levels,some energy ratios and B(
阐叙了双啮仪微机自动测量分析系统及其设计思想、结构原理和功能.应用该系统可自动绘制齿轮双啮中心距的误差曲线;给出被测齿轮的ΔF_i″及Δf_i″参数;能绘制被测齿轮的误
An ultrasonic energy transference system with a ZnO square piezoelectric thin-film array (SPTFA) structure is presented.The design principle of the system is an
城建档案作为一种重要的科技信息资源,是城市建设的见证,也是档案事业全面发展的一个重要组成部分.城建档案的查阅利用是城建档案工作的目的所在.本文阐述了城建档案利用过程
如何提高高校档案管理人员的素质,是目前高校档案管理工作面临信息化、网络化、数字化亟待解决的问题.以信息化和网络化为代表的新形势给档案管理工作带来了新的挑战,也为档