High color rendering index and chromatic-stable white organic light emitting diodes incorporating excimer and fluorescence emission

被引：23
|
作者：
Xiong, Linghao [1 ,2 ]
Zhu, Wenqing [1 ,2 ]
Wei, Na [2 ]
Li, Jiaheng [2 ]
Sun, Wenbing [2 ]
Wu, Xiaoliang [2 ]
Cao, Jin [2 ]
Wang, Zixing [2 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China
[2] Shanghai Univ, Minist Educ, Key Lab Adv Display & Syst Applicat, Shanghai 200072, Peoples R China
来源：
ORGANIC ELECTRONICS | 2013年 / 14卷 / 01期
基金：
上海市自然科学基金;
关键词：
Organic light emitting diodes; Color rendering index; Excimer; Excition confinement; EFFICIENCY; EXCITON; DEVICES; PERFORMANCE;
D O I：
10.1016/j.orgel.2012.10.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We developed high color rendering index (CRI) white organic light emitting diodes (WOLEDs) by the incorporation of yellow or green fluorescence emission located between the monomer and excimer emission of platinum [1,3-difluoro-4,6-di (2-pyridinyl) benzene]chloride (Pt-4). The devices comprising yellow or green fluorescence emission exhibited a maximum CRI of 92 and 94, respectively. Meanwhile, the devices showed excellent chromatic stability and low efficiency roll-off. We attribute the high CRI to the perfect spectrum complement and the relative intensity adjustment between two emission layers (EMLs). The mechanism of triplet excition confinement plays a crucial role in the suppression of chromaticity shifting and efficiency roll-off. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：32 / 37
页数：6
相关论文
共 50 条
  • [11] Efficient, stable and high color rendering index white polymer light -emitting diodes by restraining the electron trapping
    Xu, Jin
    Yu, Lei
    Sun, Zhenzhong
    Li, Tao
    Chen, Haibin
    Yang, Wei
    ORGANIC ELECTRONICS, 2020, 84
  • [12] Efficient, color-stable and high color-rendering-index white organic light-emitting diodes employing full thermally activated delayed fluorescence system
    Zhang, Ming
    Wang, Kai
    Zheng, Cai-Jun
    Liu, Wei
    Lin, Hui
    Tao, Si-Lu
    Zhang, Xiao-Hong
    ORGANIC ELECTRONICS, 2017, 50 : 466 - 472
  • [13] High efficiency, high color rendering index white organic light-emitting diodes based on thermally activated delayed fluorescence materials
    Li, Zhiyi
    Li, Bowen
    Wei, Xiaofang
    Liu, Jianjun
    Wang, Ruifang
    Hu, Xiaoxiao
    Liu, Guanhao
    Gao, Honglei
    Zhang, Yong
    Lee, Chun-Sing
    Wang, Pengfei
    Wang, Ying
    APPLIED PHYSICS LETTERS, 2019, 115 (26)
  • [14] Very-High Color Rendering Index Hybrid White Organic Light-Emitting Diodes with Double Emitting Nanolayers
    Liu, Baiquan
    Xu, Miao
    Wang, Lei
    Tao, Hong
    Su, Yueju
    Gao, Dongyu
    Lan, Linfeng
    Zou, Jianhua
    Peng, Junbiao
    NANO-MICRO LETTERS, 2014, 6 (04) : 335 - 339
  • [15] Very-High Color Rendering Index Hybrid White Organic Light-Emitting Diodes with Double Emitting Nanolayers
    Baiquan Liu
    Miao Xu
    Lei Wang
    Hong Tao
    Yueju Su
    Dongyu Gao
    Linfeng Lan
    Jianhua Zou
    Junbiao Peng
    Nano-Micro Letters, 2014, 6 (04) : 335 - 339
  • [16] Very-High Color Rendering Index Hybrid White Organic Light-Emitting Diodes with Double Emitting Nanolayers
    Baiquan Liu
    Miao Xu
    Lei Wang
    Hong Tao
    Yueju Su
    Dongyu Gao
    Linfeng Lan
    Jianhua Zou
    Junbiao Peng
    Nano-Micro Letters, 2014, 6 : 335 - 339
  • [17] Efficient co-doped white organic light-emitting diodes with high color stability and color rendering index
    Chen, Xue
    Zhu, Wenqing
    Wang, Sai
    Xu, Feng
    Xu, Hong
    Zhang, Xiaowen
    Wei, Bin
    Li, Xifeng
    Jiang, Xueyin
    Zhang, Zhilin
    DISPLAYS, 2011, 32 (05) : 320 - 324
  • [18] High color rendering index in phosphorescent white organic light-emitting diodes using a yellowish-green dopant with broad light emission
    Park, Min Su
    Park, Hyun Jin
    Kim, Oh Young
    Lee, Jun Yeob
    ORGANIC ELECTRONICS, 2013, 14 (06) : 1504 - 1509
  • [19] Efficient, stable and high color rendering index white polymer light-emitting diodes by restraining the electron trapping
    Xu J.
    Yu L.
    Sun Z.
    Li T.
    Chen H.
    Yang W.
    Organic Electronics, 2020, 84
  • [20] Hybrid white organic light-emitting diodes with a double light-emitting layer structure for high color-rendering index
    Zhao, Fangchao
    Sun, Ning
    Zhang, Hongmei
    Chen, Jiangshan
    Ma, Dongge
    JOURNAL OF APPLIED PHYSICS, 2012, 112 (08)
12345