Structure properties of a highly luminescent yellow emitting material for OLED and its application
Structure properties of a highly luminescent yellow emitting material for OLED and its application
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DOI：
10.1039/c2ra21951d
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发表时间：
2013
期刊：
影响因子：
3.9
通讯作者：
S. Mulani;M. Xiao;Shuanjin Wang;Yawen Chen;Junbiao Peng;Y. Meng
中科院分区：
文献类型：
--
作者：
S. Mulani;M. Xiao;Shuanjin Wang;Yawen Chen;Junbiao Peng;Y. Meng
以2，6-二甲氧基苯酚为配体，合成了三环取代铱配合物[Ir（III）3]，并将其应用于有机电致发光器件（OLED）的制备。系统地研究了配合物的吸收、发射、循环伏安和热稳定性。该配合物的结构也采用单晶X-射线衍射分析进行了表征。它的晶体呈立方结构。我们的器件在7V电压和118 mA cm-2电流密度下分别在576 nm处具有最大发光效率10564 cd m-12。在5.93 mA cm−2时，最大量子效率为8.7%。在2wt%掺杂浓度下，国际照明委员会（CIE）坐标为（0.49，0.50），并且在ITO/PEDOS：PSS/PVK：PBD：Ir（Ir）3/TPBI/Ba/Al器件中显示出典型的整流二极管特性。
A tris-cyclometalated iridium(III) complex [Ir(DMP)3] containing 2,6-dimethoxy phenol and an ancillary ligand was successfully prepared and used in the fabrication of organic light-emitting diodes (OLEDs). The absorption, emission, cyclic voltammetry and thermostability of the complex were systematically investigated. The structure of this complex was also characterized using single crystal X-ray diffraction analysis. Its crystal shows a cubic structure. Our device exhibits a yellow emission at 576 nm with a maximum luminescence efficiency of 10564 cd m−12 at a voltage of 7 V and a current density of 118 mA cm−2 respectively. The maximum quantum efficiency is 8.7% at 5.93 mA cm−2. The Commission Internationale de l′Eclairage (CIE) coordinates were (0.49, 0.50) at a 2 wt% doping concentration and show typical rectifying diode characteristics in the ITO/PEDOS:PSS/PVK:PBD:Ir(DMP)3/TPBI/Ba/Al device.