基于混合配体Znq(DBM)的单色和白色OLED
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  • 英文篇名:Monochrome and white organic light-emitting diodes based on Znq(DBM)
  • 作者:苏斌 ; 赵静 ; 李春梅 ; 荣光怡 ; 刘春波 ; 车广波 ; 田沛东 ; 王庆伟
  • 英文作者:SU Bin;ZHAO Jing;LI Chun-mei;RONG Guang-yi;LIU Chun-bo;CHE Guang-bo;TIAN Pei-dong;WANG Qing-wei;College of Environmental Science and Engineering,Jilin Normal University;Key Laboratory of the Preparation and Application of Environment Friendly Materials,Ministry of Education,Jilin Normal University;
  • 关键词:Znq(DBM) ; 混合配体 ; 有机电致发光器件(OLED) ; 间隔层
  • 英文关键词:Znq(DBM);;mixed-ligand;;organic light-emitting diode(OLED);;interlayer
  • 中文刊名:GDZJ
  • 英文刊名:Journal of Optoelectronics.Laser
  • 机构:吉林师范大学环境科学与工程学院;吉林师范大学环境友好材料制备与应用教育部重点实验室;
  • 出版日期:2014-04-15
  • 出版单位:光电子.激光
  • 年:2014
  • 期:v.25;No.226
  • 基金:国家自然科学基金(61205040);; 教育部新世纪优秀人才支持计划(NCET-10-0176);; 吉林省创新团队项目(20130521019JH);; 四平市科技局项目(2011015)资助项目
  • 语种:中文;
  • 页:GDZJ201404006
  • 页数:5
  • CN:04
  • ISSN:12-1182/O4
  • 分类号:33-37
摘要
以8-羟基喹啉(q)和1,3-二苯基-1,3-丙二酮定向合成了有机小分子配合物Znq(DBM),将其作为发光层制备了单色有机电致发光器件(OLED)。在结构为ITO/m-MTDATA(5nm)/NPB(40nm)/Znq(DBM)(60nm)/LiF(0.5nm)/Al(100nm)的器件中,启亮电压为5V,最大亮度达到4 575cd/m2。同时又在器件中引入间隔层BCP,研究其不同厚度对OLED性能的影响。在结构为ITO/m-MTDATA(5nm)/NPB(40nm)/BCP(x nm)/Znq(DBM)(60nm)/LiF(0.5nm)/Al(100nm)的器件中,当BCP层厚为0nm时,发光颜色为黄绿色;当BCP层厚为1nm时,发光颜色为白色,色坐标为(0.29,0.33),最大亮度为2 231cd/m2;当BCP层厚为5nm时,发光颜色为蓝色。根据器件结构和性能,讨论了其内部机理。
        Organic light-emitting diode(OLED)is considered to be a new generation of flat panel display due to many advantages,such as high efficiency and luminance,low drive voltage and light weight.Organic metal complexes based on 8-hydroxyquinoline are widely used due to simple synthesis,high luminance and efficiency,as well as superior film morphology.The small molecule organic complex of Znq(DBM)was designed and synthesized with 8-hydroxyquinoline and 1,3-diphenyl-1,3-propanedione.Monochrome OLED was fabricated based on Znq(DBM)as emitting layer.The structure of OLED is ITO/m-MTDATA(5nm)/NPB(40nm)/Znq(DBM)(60nm)/LiF(0.5nm)/Al(100nm),the turn-on voltage is 5Vand the maximum luminance is 4575cd/m2.Then an interlayer of BCP was introduced into OLED,and the performance of OLED is studied with the thickness of BCP.The structure of OLED with interlayer is ITO/m-MTDATA(5nm)/NPB(40nm)/BCP(x nm)/Znq(DBM)(60nm)/LiF(0.5nm)/Al(100nm).When the BCP is 0nm,the EL color is greenish-yellow.When the BCP is 1nm,the EL color is white,the CIE coordinate is(0.29,0.33)and maximum luminance is 2231cd/m2.But when the BCP is 5nm,the EL color is blue.The working mechanism of the OLED is also discussed in terms of the performance and device structures.
引文
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