浏览全部资源
扫码关注微信
掺杂发光体对红色有机电致发光的影响
Effects of Doped Emitter on Performance of Red Organic Light Emitting Diodes
- 液晶与显示 2010年25卷第3期 页码：364-369
- 作者机构：
陕西科技大学 电气与信息工程学院,陕西 西安,710021
- 作者简介：
- 基金信息：
DOI：
中图分类号： TN383+.1收稿日期：2009-11-21，
修回日期：1900-01-02，
网络出版日期：2010-06-30，
纸质出版日期：2010-06-30
- 稿件说明：
移动端阅览
蒋谦;张方辉;刘丁菡;姚毅. 掺杂发光体对红色有机电致发光的影响[J]. 液晶与显示, 2010,25(3): 364-369
JIANG Qian;ZHANG Fang-hui;LIU Din-ghan;YAO Yi. Effects of Doped Emitter on Performance of Red Organic Light Emitting Diodes[J]. 液晶与显示, 2010,25(3): 364-369
摘要
为了研究掺杂发光体对红色有机电致发光二极管的增强效果，将DCJTB和C
545
T分别掺入Alq
3
制备了双发光层的OLED器件，器件结构为玻璃/ITO/4
4
4-tris[2-naphthylphenyl-1-phenylamino]triphenyla mine (2T-NATA)/N
N-di(naphthalene-1-yl)-N
N'-diphenyl benzidine (NPB)/tris-(8-hydroxyquinoline) aluminum (Alq
3
)∶4-(dicyanomethylene)-2-tert-butyl-6(1
7
7
7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran-(DCJTB)/Alq
3
∶10-(2-benzothiazolyl)-2
3
6
7- tetrahydro-1
1
7
7
- tetramethyl-1H
5H
11H-(1)-benzopyropyrano-(6
7- 8-i
j)quinolizin-11-one (C
545
T)/Alq
3
/LiF/Al，并且将其与单发光层的红、绿光器件相比较。实验结果表明，与单发光层的红光器件相比，加入绿光发光层的红光器件的发光特性被增强了，这种双发光层器件的最优掺杂比例为[Alq
3
∶(2.5%)C
545
T]/[Alq
3
∶(1.5%)DCJTB](质量分数)，在电压为11.5 V时得到最大发光亮度为6 830 cd/m
2
，在11 V电压时能得到4.59 cd/A的最大电流效率。但是，这种方法的缺点是削弱了红光的色纯度。
Abstract
Organic Light Emitting Diodes (OLEDs)with two emitters
doping DCJTB and C
545
T into Alq
3
to form a double emitting layers respectively
were presented to investigate enhancement of doped emitter on performance of red organic light emitting diodes. The devices structure used are: Glass/ITO/4
4'
4-tris triphenylamine (2T-NATA)/N
N'-di(naphthalene-1-yl)-N
N'-diphenyl benzidine (NPB)/Tris-(8-hydroxyquinoline) aluminum (Alq
3
) ∶ 4- (dicyanomethylene)-2-tert-butyl-6(1
7
7
7-tetrame thyljulolidin-4-yl-vinyl)-4H-pyran(DCJTB)/Alq
3
∶ 10-(2-benzothiazolyl)-2
3
6
7- tetrahydro-1
1
7
7
- tetramethyl-1H
5H
11H-(1)-benzopyropyrano-(6
7- 8-i
j)quinolizin-11-one (C
545
T)/ Alq
3
/LiF/Al
and the devices were compared with single emitting-layer red and green devices. The results indicated the red emission was indeed enhanced by the green emitter as comparing with the single emitting-layer red organic light emitting devices
and the optimal doping proportion for green emitter enhanced red device is ∶ (1.5%)DCJTB]/ ∶ (2.5%)C
545
T](mass fraction)
which exhibited a maximum brightness of 6 830 cd/m
2
at a voltage of 11.5 V
a maximum current efficiency of 4.59 cd/A at a voltage of 11 V
respectively
yet the means sacrifice the color purity of red light.
关键词
Keywords
references
Wang Qi, Ma Dong ge. Fabrication methods of white organic light emitting diodes [J]. Chin. J. Liquid Crystal and Displays, 2009,24(5):617-629.
Hwang Do-Hoon, Lee Jong-Don, Cho Hoon-Je, et al. Organic white light-emitting diodes using a new DCM derivative as an orange-red doping molecule [J]. Synthetic Metals, 2008, 158(21-24):802-809.
WU Yuqi, Zhu Wenqing, ZHANG Zhi-lin, et al. Study on red organic thin-film electroluminescent Devices [J]. Chin. J. Liquid Crystal and Displays, 2003,18(4):271-274.
Lee Young Gu, Kang Sung Kee, Oh Tae Sik, et al. Comparison of two co-host systems for doped red organic light-emitting devices in an effort to improve the efficiency and the lifetime [J]. Organic Electronics, 2008, 9:339-346.
Li Weizhi, Yu Junsheng, Wang Tao, et al. Electroluminescence of organic light-emitting diodes with an ultra-thin layer of dopant [J]. Materials Science and Engineering B, 2008, 149(1):77-81.
Shen Weng-Chang, Su Y K, Ji Liang-Wen. High brightness OLED with dual emitting layers [J]. Materials Science and Engineering A, 2007，445-446:509-512.
Lee Jiun-Haw, Huang Chih-Lun, Hsiao Chich-Hung, et al. Blue phosphorescent organic light emitting device with double emitting layer [J]. Appl. Phys. Lett., 2009,94(22):223301(1-3).
Fukagawa H, Watanabe K, Tsuzuki T, et al. Highly efficient, deep-blue phosphorescent organic light emitting diodes with a double-emitting layer structure [J].Appl. Phys. Lett., 2008,93(13):133312(1-3).
Kim Young Kook, Hwang Seok-Hwan. Highly efficient organic light-emitting diodes using novel hole-transporting materials [J]. Synthetic Metals, 2006, 156: 1028-1035.
Kim M S, Lim J T, Jeong C H, et al. White organic light-emitting diodes from three emitter layers [J]. Thin Solid Films, 2006,515(3):891-895.
Shen Weng Chang, Su Yan-Kuin, Ji Liang-wen, et al. High bright white organic light-emitting diode based on mixing orange and blue emission [J]. J. Crystal growth, 2006,293(1):48-51.
Shen Weng Chang, Su Y K, Ji Liang-wen, et al. High brightness OLED with dual emitting layers [J]. Materials Science and Engineering A, 2007, 445-446:509-512.
Karg S, Steiger J, Seggern H Von. Determination of trap energies in Alq3 and TPD [J].Synthetic Metals,2000,111-112:277-280;
Hou Jingying, Gao wenbao, Sun Jia-xin, et al. Improved efficiency of organic light emitting diodes by doping each other between the organic layer [J]. Chin. J. Lumin., 2003,24(2):157-160.
George Vamvounis, Hany Aziz, Lee J H, et al. Temperature dependence of operational stability of organic light emitting diodes based on mixed emitter layers [J]. Synthetic Metals, 2004,143(1):69-73.
Liu s W, Huang C A, Lee J H, et al. Blue mixed host organic light emitting devices [J]. Thin Solid Films, 2004, 453-454:312-315.
Lee Jonghee, Lee Jeong-Ik, Lee Jun Yeob, et al. Stable efficiency roll-off in blue phosphorescent organic -light emitting diodes by host layer engineering [J]. Organic Electronics, 2009, 10(8):1529-1533.
0
浏览量
43
下载量
0
CSCD
- 网络PDF下载
- Meta-XML下载
- BibTeX下载
- Endnote下载
- RefMan 下载
- NoteExpress下载
- NoteFirst下载
关联资源
相关文章
相关作者
相关机构
AI问答- 地址：长春市东南湖大路3888号 邮编：130033
- 联系电话：0431-86176059 Email：yjxs@ciomp.ac.cn
- 本系统由Light学术出版中心、北京北大方正电子有限公司共建 吉ICP备11002662号-17
京公网安备11010802024621 - 本系统建议在Chrome、 IE9+ 以上版本浏览器阅读本站内容，360浏览器请切换至极速模式
- Cookies帮助我们提供服务并提供个性化体验。使用本网站，即表示您同意我们使用Cookies
