基于苯甲酰基苯基吡啶和各种辅助配体的铱（III）配合物的高效红色磷光有机发光二极管。

Efficient red phosphorescent OLEDs using Ir(III) complexes based on bezoylphenylpyridine and the various ancillary ligands.

作者信息

Hwang Jin Soo, Lee Kum Hee, Lee Seok Jae, Kim Young Kwan, Yoon Seung Soo

出版信息

J Nanosci Nanotechnol. 2014 Aug;14(8):6128-32. doi: 10.1166/jnn.2014.8441.

DOI:10.1166/jnn.2014.8441

Abstract

A series of red phosphorescent Ir(III) complexes 1-5 based on benzoylphenylpyridine and various ancillary ligands were synthesized and their photophysical properties were investigated. The EL efficiencies were quite sensitive to the structural features of the dopants in the emitting layers. Particularly, using complex 5 as a dopant in emitting layer, a high-efficiency orange-red OLED was fabricated, showing the maximum luminance of 16,900 cd/m2 at 12 V, the luminous efficiency of 12.8 cd/A, the power efficiency of 4.48 lm/W, the external quantum efficiency of 9.65% at 20 mA/cm2 and CIE x,y coordinates of (0.609, 0.390) at 12 V.

摘要

合成了一系列基于苯甲酰基苯基吡啶和各种辅助配体的红色磷光铱（III）配合物1-5，并研究了它们的光物理性质。发光层中掺杂剂的结构特征对电致发光效率非常敏感。特别是，将配合物5用作发光层中的掺杂剂，制备了一种高效橙红色有机发光二极管，在12V时最大亮度为16900cd/m²，发光效率为12.8cd/A，功率效率为4.48lm/W，在20mA/cm²时外量子效率为9.65%，在12V时CIE x,y坐标为（0.609, 0.390）。