物理化学学报 >> 2009, Vol. 25 >> Issue (10): 2068-2073.doi: 10.3866/PKU.WHXB20090937

研究论文 上一篇    下一篇

基于N-对甲氧苯基咔唑-2-乙烯基-8-羟基喹啉锌的白色和黄色有机电致发光器件的性能

丁桂英, 姜文龙, 汪津, 欧阳新华, 曾和平   

  1. 吉林师范大学信息技术学院, 吉林 四平 136000|华南理工大学化学与化工学院, 广州 510641
  • 收稿日期:2009-05-04 修回日期:2009-06-07 发布日期:2009-09-29
  • 通讯作者: 姜文龙, 曾和平 E-mail:jiang_wl@163.com; hpzeng@scut.edu.cn

Properties of White and Yellow Organic Light-Emitting Devices Based on (E)-2-(2-(9-(4-Methoxyphenyl)-9H-Carbazol-3-yl) Quinolato-Zinc

DING Gui-Ying, JIANG Wen-Long, WANG Jin, OUYANG Xin-Hua, ZENG He-Ping   

  1. College of Information Technology, Jilin Normal University, Siping 136000, Jilin Province, P. R. China|School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China
  • Received:2009-05-04 Revised:2009-06-07 Published:2009-09-29
  • Contact: JIANG Wen-Long, ZENG He-Ping E-mail:jiang_wl@163.com; hpzeng@scut.edu.cn

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摘要：

通过研究新型荧光染料N-对甲氧苯基咔唑-2-乙烯基-8-羟基喹啉锌(MoBCzHQZn)的电致发光(EL)特性, 发现MoBCzHQZn具有较强的发光特性和空穴传输特性, 利用此特性制备了非掺杂型的有机电致白光器件和掺杂型的有机电致黄光器件. 白光器件的结构为ITO/2T-NATA(20 nm)/MoBCzHQZn(25 nm)/NPBX(13 nm)/BCP(8nm)/Alq3(34 nm)/LiF(0.5 nm)/Al, 器件在15 V电压下实现了白光发射, 色坐标为(0.3719, 0.3275), 最大发光亮度为3414 cd·m-2, 在14 V 电压下的最大发光效率为1.69 cd·A-1、黄光器件的结构为ITO/2T-NATA(20 nm)/CBP:6%Ir(ppy)3:10%MoBCzHQZn(25 nm)/TPBi:6%Ir(ppy)3(47 nm)/LiF(0.5 nm)/Al, 器件在15 V电压下实现了黄绿光发射, 色坐标为(0.3590, 0.5787), 最大发光亮度为11073 cd·m-2, 在9 V电压下的最大发光效率为2.51 cd·A-1.

关键词: 有机电致发光器件, 空穴传输发光材料, 亮度

Abstract:

We investigated the electroluminescence (EL) characteristics of a novel yellow emitting material: (E)-2-(2-(9-(4-methoxyphenyl)-9H-carbazol-3-yl)quinolato-zinc (MoBCzHQZn). The results demonstrated the MoBCzHQZn with strong yellow emitting and hole-transporting ability. Based on these performances, a series of un-doping white and doping yelloworganic light-emitting devices (OLEDs) were fabricated. The white device was fabricated as follows: ITO/2T-NATA(20 nm)/MoBCzHQZn(25 nm)/NPBX(13 nm)/BCP(8nm)/Alq3(34 nm)/LiF(0.5 nm)/Al, white OLEDs were obtained with Commission International de L'Eclairage coordinates of (0.3719, 0.3275), the maximum luminance was 3414 cd·m-2 at an applied voltage of 15 V and the maximum luminous efficiency was 1.69 cd·A-1 at an applied voltage of 14 V. The yellow device was fabricated as follows: ITO/2T-NATA(20 nm)/CBP:6% Ir(ppy)3:10% MoBCzHQZn(25 nm)/TPBi:6% Ir(ppy)3(47 nm)/LiF (0.5 nm)/Al, yellow OLEDs were obtained with Commission International de L'Eclairage coordinates of (0.3590, 0.5787), the maximumluminance was 11073 cd·m-2 at an applied voltage of 15 V and the maximumluminous efficiency was 2.51 cd·A-1 at an applied voltage of 9 V.

Key words: Organic light-emitting devices, Hole-transporting emitter material, Luminance

MSC2000: 

  • O644