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化学学报
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化学学报 ›› 2008, Vol. 66 ›› Issue (10): 1209-1214. 上一篇    下一篇

研究论文

2-对联苯-8-羟基喹啉锌的合成及其应用于新型白光OLED

赵婷，丁洪流，施国跃，金利通*   

  1. (华东师范大学化学系 上海 200062)
  • 投稿日期:2007-11-26 修回日期:2008-01-17 发布日期:2008-05-28
  • 通讯作者: 金利通

Synthesis of Bis(2-biphenyl-4'-yl-8-quinolinolato)zinc and Its Application in a Novel White OLED

ZHAO, Ting, DING, Hong-Liu, SHI, Guo-Yue, JIN, Li-Tong*   

  1. (Department of Chemistry, East China Normal University, Shanghai 200062)
  • Received:2007-11-26 Revised:2008-01-17 Published:2008-05-28
  • Contact: JIN, Li-Tong

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855

被引次数

31 | 4

合成了一种全新的有机发光材料2-对联苯-8-羟基喹啉锌(Zn[2-(p-biPh)-8-Q-O]2), 通过1H NMR, UV-Vis等对配合物的结构进行表征. 利用该材料制备了新型白光有机电致发光器件(OLED), 其结构为: ITO/NPB (N,N'-双(1-萘基)-N,N'-二苯基-1,1'-二苯基-4,4'-二胺)/BCP (2,9-二甲基-4,7-二苯基-1,10-菲咯啉)/Zn[2-(p-biPh)-8-Q-O]2/Al. 通过调节空穴阻挡层BCP的厚度, 实现了NPB(蓝光发射)和Zn[2-(p-biPh)-8-Q-O]2(黄光发射)作为器件双发光层的有效复合, 并研究了其发光机理. 当BCP层的厚度为2.0 nm时, 获得了稳定的白色发光; 该器件在6 V电压下启亮, 20 V电压时最大发光亮度达到130 cd/m2, 电流效率为0.224 cd/A.

关键词: 白光有机电致发光器件, 空穴阻挡层, 2-对联苯-8-羟基喹啉锌, 2,9-二甲基-4,7-二苯基-1,10-菲咯啉

A novel emission material bis(2-biphenyl-4'-yl-8-quinolinolato)zinc {Zn[2-(p-biPh)-8-Q-O]2} was synthesized and confirmed by 1H NMR and UV-Vis measurements. White organic light-emitting diode with a structure of ITO/NPB (N,N'-di(1-naphthyl)-N,N'-diphenyl-(1,1'-biphenyl-4,4'-ylenediamine)/BCP (2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline)/Zn[2-(p-biPh)-8-Q-O]2/Al was fabricated and its electro- luminescent mechanism was studied. The mixture light from double emitting materials of NPB (blue-light emission) and Zn[2-(p-biPh)-8-Q-O]2 (yellow-light emission) was achieved by effectively adjusting the thickness of BCP that functioned as a hole blocking layer. When a 2.0 nm-thick BCP was used, white-light emission was obtained. With a lower turn-on voltage at about 6 V, the white OLED showed a maximum brightness of 130 cd/m2 and current efficiency of 0.224 cd/A at 20 V.

Key words: white organic light-emitting diode, hole blocking layer, bis(2-biphenyl-4'-yl-8-quinolinolato)- zinc, 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline