J4 ›› 2011, Vol. 49 ›› Issue (04): 760-763.

• 计算机科学 • 上一篇    下一篇

基于N-BDAVBi的非掺杂高效蓝色OLEDs

姚冠新1, 韩强1,2, 姜文龙2, 王艳玲2,3, 王福军2, 王冬梅2   

  1. 1. 江苏大学 材料科学与工程学院, 江苏 镇江 212013|2. 吉林师范大学 信息技术学院, 吉林 四平 136000|3. 吉林医药学院 教务处, 吉林 吉林 132013
  • 收稿日期:2011-04-20 出版日期:2011-07-26 发布日期:2011-08-16
  • 通讯作者: 姜文龙 E-mail:jiang_wl@163.com

High Efficient Undoped Blue Organic Light\|Emitting Devices Based on N-BDAVBi


YAO Guan xin1, HAN Qiang1,2, JIANG Wen long2, WANG Yan ling2,3, WANG Fu jun2, WANG Dong mei2   

  1. 1. School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu Province, China|2. College of Information and Technology, Jilin Normal University, Siping 136000, Jilin Province, China|3. Academic Affair Office, Jilin Medical College, Jilin 132013, Jilin Province, China
  • Received:2011-04-20 Online:2011-07-26 Published:2011-08-16
  • Contact: JIANG Wen long E-mail:jiang_wl@163.com

摘要:

采用真空蒸镀方法, 制备了以N\|BDAVBi为发光层的高效率非掺杂蓝色有机电致发光器件,  器件的结构为ITO/2T-NATA(40 nm)/NPB(10 nm)/N\|BDAVBi((3+d) nm)/ADN(7 nm)/N\|BDAVBi((3+d) nm)/ADN(7 nm)/Alq3(30 nm)/LiF(0.5  nm)/Al. 通过调整N\|BDAVBi层的厚度, 研究了器件的发光性能.  结果表明, 当N\|BDAVBi的厚度为7 nm时, 器件在6 V电压下的电流效率最大, 为4.38 cd/A; 当N\|BDAVBi的厚度为11 nm时, 器件在13 V电压下的亮度最大, 为13 200 cd/m2. 该组器件的色坐标在0~13 V时均位于蓝光区域. 

关键词: 有机电致发光器件(OLED), 非掺杂, 效率, 蓝光

Abstract:

 High efficient undoped blue organic light\|emitting devices (OLEDs) with a typical structure of ITO/2T\|NATA(40 nm)/NPB(10 nm)/N-BDAVBi((3+d) nm)/ADN(7 nm)/N\|BDAVBi((3+d) nm)/ADN(7 nm)/Alq3(30 nm)/LiF(0.5  nm)/Al were prepared by means of  thermal vacuum deposition method with  N\|BDAVBi as the emitting layer. The results show that the device has a maximum luminous efficiency of 4.38 cd/A at 6 V when the thickness of N\|BDAVBi layer is 7 nm,  and the device has a maximum luminance of 13 200 cd/m2 at 13 V when the thickness of N\|BDAVBi layer is 11 nm. The CIE coordinates of the device are within the blueregion when the voltage changes from 0 V to 13 V.

Key words: organic light-emitting device (OLED), undoped, efficiency, blue emission

中图分类号: 

  • TN383