Improve efficiency of white organic light-emitting diodes by using nanosphere arrays in color conversion layers

被引：11
|
作者：
Ho, Yu-Hsuan [1 ,2 ]
Huang, Ding-Wei [2 ]
Chang, Yung-Ting [2 ]
Ye, Ya-Han [2 ]
Chu, Chih-Wei [1 ]
Tian, Wei-Cheng [2 ]
Chen, Chin-Ti [3 ]
Wei, Pei-Kuen [1 ,4 ,5 ]
机构：
[1] Acad Sinica, Res Ctr Appl Sci, Taipei 115, Taiwan
[2] Natl Taiwan Univ, Grad Inst Elect Engn, Taipei 10617, Taiwan
[3] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 10617, Taiwan
[4] Natl Yang Ming Univ, Inst Biophoton, Taipei 112, Taiwan
[5] Natl Taiwan Ocean Univ, Dept Optoelect, Keelung, Taiwan
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 03期
关键词：
DEVICES; ENHANCEMENT; POLYMER;
D O I：
10.1364/OE.20.003005
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The authors demonstrated an efficient color conversion layer (CCL) by using nanosphere arrays in down-converted white organic light-emitting diodes (WOLEDs). The introduced periodical nanospheres not only helped extract the confined light in devices, but also increased the effective light path to achieve high-efficiency color conversion. By applying a CCL with red phosphor on a 400-nm-period nanosphere array, we achieved 137% color conversion ratio for blue OLEDs, which was 2.68 times higher than conventional flat CCL. The resulting luminous efficiency of WOLEDs with patterned CCLs (20.97 cd/A, 1000 cd/m2) was two times higher than the efficiency of the flat device (10.26 cd/A, 1000 cd/m2). (C)2012 Optical Society of America
引用
收藏
页码：3005 / 3014
页数：10
相关论文
共 50 条
  • [1] ITO-free down-conversion white organic light-emitting diodes with structured color conversion layers for enhanced optical efficiency and color rendering
    Koh, Tae-Wook
    Cho, Hyunsu
    Yun, Changhun
    Yoo, Seunghyup
    ORGANIC ELECTRONICS, 2012, 13 (12) : 3145 - 3153
  • [2] Energy distribution in white organic light-emitting diodes with three primary color emitting layers
    LingChuan Meng
    ZhiDong Lou
    ShengYi Yang
    ZhaoRu Deng
    Science China Physics, Mechanics and Astronomy, 2011, 54 : 84 - 88
  • [3] Energy distribution in white organic light-emitting diodes with three primary color emitting layers
    MENG LingChuan 1
    Institute of Optoelectronic Technology
    2 School of Material Science and Engineering
    Science China(Physics,Mechanics & Astronomy), 2011, Mechanics & Astronomy)2011 (01) : 84 - 88
  • [4] Energy distribution in white organic light-emitting diodes with three primary color emitting layers
    Meng LingChuan
    Lou ZhiDong
    Yang ShengYi
    Deng ZhaoRu
    SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2011, 54 (01) : 84 - 88
  • [5] White organic light-emitting diodes with high efficiency and stable color coordinates
    Lee, CH
    Lee, NH
    Song, JH
    Hwang, DH
    FOURTH INTERNATIONAL CONFERENCE ON SOLID STATE LIGHTING, 2004, 5530 : 354 - 361
  • [6] Enhancing Color Purity and Efficiency of White Organic Light-Emitting Diodes Using an Extinction Layer
    Su, Shui-Hsiang
    Hou, Cheng-Chieh
    Yokoyama, Meiso
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2009, 156 (08) : J226 - J229
  • [7] Hybrid color-conversion layers for white emission from fluorescent blue organic light-emitting diodes
    Lee, Seung-Hwan
    Jo, Deuk Su
    Kim, Bong Sung
    Yoon, Dae-Ho
    Chae, Heeyeop
    Chung, Ho-Kyoon
    Cho, Sung Min
    CURRENT APPLIED PHYSICS, 2017, 17 (08) : 1108 - 1113
  • [8] Top-emitting white organic light-emitting diodes with a color conversion cap layer
    Chen, Shuming
    Kwok, Hoi-Sing
    ORGANIC ELECTRONICS, 2011, 12 (04) : 677 - 681
  • [9] Study of white organic light emitting diodes utilizing DCJTB as color conversion layers
    Hua, Y.-L. (yulinhua@tjut.edu.cn), 1600, Board of Optronics Lasers, No. 47 Yang-Liu-Qing Ying-Jian Road, Tian-Jin City, 300380, China (23):
  • [10] High efficiency white organic light-emitting diodes
    Gang Zhang
    Weili Dong
    Hongyan Gao
    Xiaocui Tian
    Lina Zhao
    Wenlong Jiang
    Xiyan Zhang
    Russian Journal of Physical Chemistry A, 2015, 89 : 1115 - 1119
12345