Ultrapure Blue Phosphorescent Organic Light-Emitting Diodes Employing a Twisted Pt(II) Complex

被引：21
|
作者：
Chen, Yumeng [1 ,2 ]
Qian, Chunyue [1 ,2 ]
Qin, Ke [1 ,2 ]
Li, Hongbo [3 ]
Shi, Xiaobo [4 ]
Lu, Zhenzhong [1 ,2 ]
Ma, Huili [1 ,2 ]
Qin, Tianshi [1 ,2 ]
Hang, Xiao-Chun [1 ,2 ]
Huang, Wei [1 ,2 ,5 ,6 ]
机构：
[1] Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Peoples R China
[2] Nanjing Tech Univ NanjingTech, Inst Adv Mat IAM, Nanjing 211816, Peoples R China
[3] Sinopec, Beijing Res Inst Chem Ind, Yanshan Branch, Beijing 102500, Peoples R China
[4] Jiangsu JITRI Organ Optoelect Technol Co Ltd, Suzhou 215215, Jiangsu, Peoples R China
[5] Northwestern Polytech Univ, Frontiers Sci Ctr Flexible Elect FSCFE, Xian 710072, Peoples R China
[6] Northwestern Polytech Univ, Shaanxi Inst Flexible Elect SIFE, Xian 710072, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2021年 / 13卷 / 44期
基金：
中国国家自然科学基金;
关键词：
blue emission; tetradentate ligand; twisted Pt(II) complex; phosphorescent OLEDs; top-emitting device; EFFICIENCY; TETRADENTATE; BRIGHT; OLEDS; BAND;
D O I：
10.1021/acsami.1c13843
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Described herein is a stable complex, Pt(mpzpyOczpy-mesi), embodying efficient, narrow blue emission. The highly twisted structure of the complex improves the stability and efficiency of photo- and electroluminescence by reducing the intermolecular interactions. The complex in solution shows high photoluminescence efficiency (>95%) and radiative decay rate (K-r = 2.9 x 10(5) s(-1)) with a narrow emission spectrum. The bottom-emitting phosphorescent device, BE1, exhibits durable deep blue emission with CIE coordinates of (0.145, 0.166) and 5.2 h of LT50 at an initial luminance of 685 cd/m(2). Top-emitting devices, TE1 and TE2, achieve ultrapure blue color with CIEx,y values of (0.141, 0.068) and (0.140, 0.071), respectively. TE4 shows high brightness of 3405 cd m(-2) at 50 mA m(-2), EQE of 10.2% at 1000 cd/m(2), and almost negligible color deviation around (0.135, 0.096) at viewing angles of 0 degrees-60 degrees.
引用
收藏
页码：52833 / 52839
页数：7
相关论文
共 50 条
  • [41] Multilayer White Organic Light-Emitting Diodes with Blue Fluorescent and Red Phosphorescent Materials
    Seo, Ji Hoon
    Kim, Jun Ho
    Lee, Kum Hee
    Kim, You-Hyun
    Kim, Woo Young
    Yoon, Seung Soo
    Kim, Young Kwan
    IMID/IDMC 2006: THE 6TH INTERNATIONAL MEETING ON INFORMATION DISPLAY/THE 5TH INTERNATIONAL DISPLAY MANUFACTURING CONFERENCE, DIGEST OF TECHNICAL PAPERS, 2006, : 1067 - 1070
  • [42] Dibenzothiophene and indolocarbazole cored bipolar hosts for blue phosphorescent organic light-emitting diodes
    Im, Yirang
    Han, Si Hyun
    Lee, Jun Yeob
    ORGANIC ELECTRONICS, 2018, 62 : 560 - 565
  • [43] Deep blue phosphorescent organic light-emitting diodes with very high brightness and efficiency
    Lee J.
    Chen H.-F.
    Batagoda T.
    Coburn C.
    Djurovich P.I.
    Thompson M.E.
    Forrest S.R.
    Nature Materials, 2016, 15 (1) : 92 - 98
  • [44] Electroluminescence enhancement in blue phosphorescent organic light-emitting diodes based on different hosts
    张微
    张方辉
    黄晋
    张麦丽
    马颖
    Optoelectronics Letters, 2013, 9 (05) : 346 - 349
  • [45] Electron-transporting layer effects on blue phosphorescent organic light-emitting diodes
    Lin, Tzu-Chan
    Chiu, Tien-Lung
    2015 22ND INTERNATIONAL WORKSHOP ON ACTIVE-MATRIX FLATPANEL DISPLAYS AND DEVICES (AM-FPD), 2015, : 81 - 84
  • [46] Long lifetime blue phosphorescent organic light-emitting diodes with an exciton blocking layer
    Seo, Jeong-A
    Jeon, Sang Kyu
    Gong, Myoung Seon
    Lee, Jun Yeob
    Noh, Chang Ho
    Kim, Sung Han
    JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (18) : 4640 - 4645
  • [47] Novel carbazole derivative as a host material for blue phosphorescent organic light-emitting diodes
    Jeon, Sang Kyu
    Thirupathaiah, Bodakuntla
    Kim, Choongik
    Lim, Kwon Taek
    Lee, Jun Yeob
    Seo, Sung Yong
    DYES AND PIGMENTS, 2015, 114 : 146 - 150
  • [48] New crosslinkable hole conductors for blue-phosphorescent organic light-emitting diodes
    Zacharias, Philipp
    Gather, Malte C.
    Rojahn, Markus
    Nuyken, Oskar
    Meerholz, Klaus
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (23) : 4388 - 4392
  • [49] High power efficiency in single layer blue phosphorescent organic light-emitting diodes
    Jang, Sang Eok
    Lee, Jun Yeob
    JOURNAL OF LUMINESCENCE, 2011, 131 (12) : 2788 - 2791
  • [50] Deep blue phosphorescent organic light-emitting diodes with excellent external quantum efficiency
    Park, Jungeun
    Oh, Hankook
    Oh, Sihyun
    Kim, Jinho
    Park, Hyun Jin
    Kim, Oh Young
    Lee, Jun Yeob
    Kang, Youngjin
    ORGANIC ELECTRONICS, 2013, 14 (12) : 3228 - 3233
12345