Home

Citation: LI Lu, YU Jun-Sheng, WANG Jun, LOU Shuang-Ling, JIANG Ya-Dong, LI Wei. High-efficiency of White Phosphorescent Organic Light-Emitting Diodes[J]. Acta Physico-Chimica Sinica, ;2007, 23(10): 1493-1497. doi: 10.1016/S1872-1508(07)60074-6 shu

High-efficiency of White Phosphorescent Organic Light-Emitting Diodes

1.
State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, P. R. China

Received Date: 5 April 2007
Available Online: 7 August 2007

High-efficiency white organic light-emitting devices (WOLEDs) based on phosphorescent dye bis[2-(4-tert-butylphenyl)benzothiazolato-N,C^2’]iridium (acetylacetonate) [(t-bt)₂Ir (acac)] doped 4,4’-bis (carbazol-9-yl) biphenyl (CBP) as a yellow emitting layer were fabricated. The structure of the devices is indium tin oxide (ITO)/N,N’-bis-(1-naphthyl)-N,N’-biphenyl-1,1’-biphenyl-4,4’-diamine (NPB)/CBP: (t-bt)₂Ir(acac)/NPB/2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP)/8-hydroxyquinoline aluminum(Alq₃)/Mg:Ag, and the second NPB layer fromthe anode was used as a blue fluorescent emitter and the first NPB layer was used as a hole transporting layer, the BCP and Alq₃ were used as hole blocking and electron transporting layers, respectively. The turn-on voltage of the device was 3 V with a maximumluminance of 15460 cd·m^-2 at 16.5 V and maximumluminance efficiency of 7.5 lm·W^-1 at 4 V, respectively. The Commission Internationale de I’Eclairage (CIE) coordinates located at (0.33, 0.32) remained stable at the driving voltage higher than 8 V, which is almost consistent with the optimum white CIE of (0.33, 0.33). The purity of white light could be adjusted by doping concentration. The effect of charge carrier trapping and energy transfer on the device performance were also discussed.
- Organic light-emitting diodes; White light; Phosphorescence; Iridium complex; Carrier trapping; Energy transfer
1. [1]
  Qiaowen CHANG , Ke ZHANG , Guangying HUANG , Nuonan LI , Weiping LIU , Fuquan BAI , Caixian YAN , Yangyang FENG , Chuan ZUO . Syntheses, structures, and photo-physical properties of iridium phosphorescent complexes with phenylpyridine derivatives bearing different substituting groups. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 235-244. doi: 10.11862/CJIC.20240311
2. [2]
  Tianyun Chen , Ruilin Xiao , Xinsheng Gu , Yunyi Shao , Qiujun Lu . Synthesis, Crystal Structure, and Mechanoluminescence Properties of Lanthanide-Based Organometallic Complexes. University Chemistry, 2024, 39(5): 363-370. doi: 10.3866/PKU.DXHX202312017
3. [3]
  Cheng Zheng , Shiying Zheng , Yanping Zhang , Shoutian Zheng , Qiaohua Wei . Synthesis, Copper Content Analysis, and Luminescent Performance Study of Binuclear Copper (I) Complexes with Isomeric Luminescence Shift: A Comprehensive Chemical Experiment Recommendation. University Chemistry, 2024, 39(7): 322-329. doi: 10.3866/PKU.DXHX202310131
4. [4]
  Ke QIAO , Yanlin LI , Shengli HUANG , Guoyu YANG . Advancements in asymmetric catalysis employing chiral iridium (ruthenium) complexes. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2091-2104. doi: 10.11862/CJIC.20240265
5. [5]
  Yi DING , Peiyu LIAO , Jianhua JIA , Mingliang TONG . Structure and photoluminescence modulation of silver(Ⅰ)-tetra(pyridin-4-yl)ethene metal-organic frameworks by substituted benzoates. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 141-148. doi: 10.11862/CJIC.20240393
6. [6]
  Fan JIA , Wenbao XU , Fangbin LIU , Haihua ZHANG , Hongbing FU . Synthesis and electroluminescence properties of Mn²⁺ doped quasi-two-dimensional perovskites (PEA)₂Pb_yMn_1-yBr₄. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1114-1122. doi: 10.11862/CJIC.20230473
7. [7]
  Jingjing QING , Fan HE , Zhihui LIU , Shuaipeng HOU , Ya LIU , Yifan JIANG , Mengting TAN , Lifang HE , Fuxing ZHANG , Xiaoming ZHU . Synthesis, structure, and anticancer activity of two complexes of dimethylglyoxime organotin. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1301-1308. doi: 10.11862/CJIC.20240003
8. [8]
  Liang TANG , Jingfei NI , Kang XIAO , Xiangmei LIU . Synthesis and X-ray imaging application of lanthanide-organic complex-based scintillators. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1892-1902. doi: 10.11862/CJIC.20240139
9. [9]
  Yuanpei ZHANG , Jiahong WANG , Jinming HUANG , Zhi HU . Preparation of magnetic mesoporous carbon loaded nano zero-valent iron for removal of Cr(Ⅲ) organic complexes from high-salt wastewater. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1731-1742. doi: 10.11862/CJIC.20240077
10. [10]
  Minna Ma , Yujin Ouyang , Yuan Wu , Mingwei Yuan , Lijuan Yang . Green Synthesis of Medical Chemiluminescence Reagents by Photocatalytic Oxidation. University Chemistry, 2024, 39(5): 134-143. doi: 10.3866/PKU.DXHX202310093
11. [11]
  Qin Li , Kexin Yang , Qinglin Yang , Xiangjin Zhu , Xiaole Han , Tao Huang . Illuminating Chlorophyll: Innovative Chemistry Popularization Experiment. University Chemistry, 2024, 39(9): 359-368. doi: 10.3866/PKU.DXHX202309059
12. [12]
  Xuewei BA , Cheng CHENG , Huaikang ZHANG , Deqing ZHANG , Shuhua LI . Preparation and luminescent performance of Sr_1-xZrSi₂O₇∶xDy³⁺ phosphor with high thermal stability. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 357-364. doi: 10.11862/CJIC.20240096
13. [13]
  Yang YANG , Pengcheng LI , Zhan SHU , Nengrong TU , Zonghua WANG . Plasmon-enhanced upconversion luminescence and application of molecular detection. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 877-884. doi: 10.11862/CJIC.20230440
14. [14]
  Borong Yu , Huijiao Zhang , Xinyu Zhang , Xiaoying Li , Shuming Chen , Zhangang Han . The Blue Elf in the Dark: Gradient Science Popularization Experiments on Chemiluminescence. University Chemistry, 2024, 39(9): 295-303. doi: 10.12461/PKU.DXHX202403107
15. [15]
  Zishuo Yi , Peng Liu , Yan Xu . Fluorescent “Chameleon”: A Popular Science Experiment Based on Dynamic Luminescence. University Chemistry, 2024, 39(9): 304-310. doi: 10.12461/PKU.DXHX202311079
16. [16]
  Xiaxue Chen , Yuxuan Yang , Ruolin Yang , Yizhu Wang , Hongyun Liu . Adjustable Polychromatic Fluorescence: Investigating the Photoluminescent Properties of Copper Nanoclusters. University Chemistry, 2024, 39(9): 328-337. doi: 10.3866/PKU.DXHX202308019
17. [17]
  YanYuan Jia , Rong Rong , Jie Liu , Jing Guo , GuoYu Jiang , Shuo Guo . Unity is Strength, and Independence Shines: A Science Popularization Experiment on AIE and ACQ Effects. University Chemistry, 2024, 39(9): 349-358. doi: 10.12461/PKU.DXHX202402035
18. [18]
  Yanting HUANG , Hua XIANG , Mei PAN . Construction and application of multi-component systems based on luminous copper nanoclusters. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2075-2090. doi: 10.11862/CJIC.20240196
19. [19]
  Changjun You , Chunchun Wang , Mingjie Cai , Yanping Liu , Baikang Zhu , Shijie Li . 引入内建电场强化BiOBr/C₃N₅ S型异质结中光载流子分离以实现高效催化降解微污染物. Acta Physico-Chimica Sinica, 2024, 40(11): 2407014-. doi: 10.3866/PKU.WHXB202407014
20. [20]
  Lin Song , Dourong Wang , Biao Zhang . Innovative Experimental Design and Research on Preparing Flexible Perovskite Fluorescent Gels Using 3D Printing. University Chemistry, 2024, 39(7): 337-344. doi: 10.3866/PKU.DXHX202310107

Get Citation

PDF

XML

Metrics

PDF Downloads(2819)
Abstract views(3805)
HTML views(99)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return