高效无掺杂磷光橙色、蓝色和白色有机发光器件。

Efficient non-doped phosphorescent orange, blue and white organic light-emitting devices.

作者信息

Yin Yongming, Yu Jing, Cao Hongtao, Zhang Letian, Sun Haizhu, Xie Wenfa

机构信息

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun. 130012, China.

College of Chemistry, Northeast Normal University, Changchun, Jilin. 130024, P. R. China.

出版信息

Sci Rep. 2014 Oct 24;4:6754. doi: 10.1038/srep06754.

DOI:10.1038/srep06754

PMID:25341698

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4208040/

Abstract

Efficient phosphorescent orange, blue and white organic light-emitting devices (OLEDs) with non-doped emissive layers were successfully fabricated. Conventional blue phosphorescent emitters bis [4,6-di-fluorophenyl]-pyridinato-N,C(2')] picolinate (Firpic) and Bis(2,4-difluorophenylpyridinato) (Fir6) were adopted to fabricate non-doped blue OLEDs, which exhibited maximum current efficiency of 7.6 and 4.6 cd/A for Firpic and Fir6 based devices, respectively. Non-doped orange OLED was fabricated utilizing the newly reported phosphorescent material iridium (III) (pbi)₂Ir(biq), of which manifested maximum current and power efficiency of 8.2 cd/A and 7.8 lm/W. The non-doped white OLEDs were achieved by simply combining Firpic or Fir6 with a 2-nm (pbi)₂Ir(biq). The maximum current and power efficiency of the Firpic and (pbi)₂Ir(biq) based white OLED were 14.8 cd/A and 17.9 lm/W.

摘要

成功制备了具有非掺杂发光层的高效磷光橙色、蓝色和白色有机发光二极管（OLED）。采用传统的蓝色磷光发射体双[4,6-二氟苯基]-吡啶-N,C(2')]吡啶甲酸酯（Firpic）和双(2,4-二氟苯基吡啶)（Fir6）制备非掺杂蓝色OLED，基于Firpic和Fir6的器件分别表现出7.6和4.6 cd/A的最大电流效率。利用新报道的磷光材料铱（III）（pbi）₂Ir（biq）制备非掺杂橙色OLED，其表现出8.2 cd/A和7.8 lm/W的最大电流和功率效率。通过简单地将Firpic或Fir6与2-nm的（pbi）₂Ir（biq）组合实现非掺杂白色OLED。基于Firpic和（pbi）₂Ir（biq）的白色OLED的最大电流和功率效率分别为14.8 cd/A和17.9 lm/W。