Efficient Green Phosphorescent Polymer Light-emitting Diodes Based on Cyclometalated Iridium Complex

LUO Kai-jun; JIANG Shi-ping; WANG Xin; DENG Xian-ping; ZHU Wei-guo; ZHAO Ke-qing; XIE Yun

doi:10.3788/fgxb20113204.0368

您当前的位置：

首页 >

文章列表页 >

Efficient Green Phosphorescent Polymer Light-emitting Diodes Based on Cyclometalated Iridium Complex

paper | 更新时间：2020-08-12

- Efficient Green Phosphorescent Polymer Light-emitting Diodes Based on Cyclometalated Iridium Complex
- Chinese Journal of Luminescence Vol. 32, Issue 4, Pages: 368-373(2011)
- 作者机构：
  
  1. 四川师范大学化学与材料学院,四川成都,610068
  2. 湘潭大学化学学院环境友好化学与应用省部共建教育部重点实验室,湖南湘潭,411105
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20113204.0368
  CLC： O621.3;O482.31
- Received：25 October 2010，
  
  Revised：15 November 2010，
  
  Published Online：22 April 2011，
  
  Published：22 April 2011
- 稿件说明：
移动端阅览
骆开均, 蒋世平, 王欣, 邓先平, 朱卫国, 赵可清, 谢运. 一种基于环金属铱配合物的高效绿色聚合物电致发光器件[J]. 发光学报, 2011,32(4): 368-373

LUO Kai-jun, JIANG Shi-ping, WANG Xin, DENG Xian-ping, ZHU Wei-guo, ZHAO Ke-qing, XIE Yun. Efficient Green Phosphorescent Polymer Light-emitting Diodes Based on Cyclometalated Iridium Complex[J]. Chinese Journal of Luminescence, 2011,32(4): 368-373
骆开均, 蒋世平, 王欣, 邓先平, 朱卫国, 赵可清, 谢运. 一种基于环金属铱配合物的高效绿色聚合物电致发光器件[J]. 发光学报, 2011,32(4): 368-373 DOI： 10.3788/fgxb20113204.0368.

LUO Kai-jun, JIANG Shi-ping, WANG Xin, DENG Xian-ping, ZHU Wei-guo, ZHAO Ke-qing, XIE Yun. Efficient Green Phosphorescent Polymer Light-emitting Diodes Based on Cyclometalated Iridium Complex[J]. Chinese Journal of Luminescence, 2011,32(4): 368-373 DOI： 10.3788/fgxb20113204.0368.

摘要

以2-苯基吡啶为主配体

3-乙酰基樟脑为辅助配体合成了一种新型的具有大空间位阻的环金属铱配合物Ir

对它的化学结构和光物理性质进行了表征。以环金属铱配合物Ir 的发光效率(0.34)为参照物

配合物在2-甲基四氢呋喃溶液中的光致发光效率为0.54

表明在配合物中引入3-乙酰基樟脑为辅助配体能够降低分子间相互作用

提高量子效率。将该配合物掺杂在聚合物主体材料中

制备了绿色聚合物发光器件。器件结构为:ITO/PEDOT ∶ PSS(45 nm)/PVK(40 nm)/PFO+30%PBD ∶

Ir(ppy)

(acam) (70 nm)/Ca(10 nm)/Al(150 nm)。当掺杂质量分数为1%时

器件的最大功率效率、最大流明效率和最大亮度分别为4.23 lm/W

15.1 cd/A和9 939cd/m

。

Abstract

A novel iridium complex with sterically bulky camphor-derives group as -diketonate

i.e.

(2-phenylpyridinato-N

C2') irdium(Ⅲ) (3-acetyl-camphor)

was synthesized and it was characterized by

H NMR

ESI-MS

and elementary analysis. This complex exhibited a higher phototoluminescence quantum efficiency (0.54) than (2-phenylpyridinato-N

C2') irdium(Ⅲ) (acetylacetonate) (0.34) in 2-methyl- tetrahydrofuran solution. Efficient green phosphorescent polymer light-emitting diodes using Ir(ppy)

(acam) as dopants showed high efficiencies and stable EL spectra

with maximum current efficiency of 15.1 cd/A

maximum power efficiency of 4.23 lm/W and maximum brightness of 9 939 cd/m

at doping mass fraction of 1%.

关键词

Keywords

references

Elisabeth H, Bea M W L, Ulrich S S. New trends in the use of transition metal-ligand complexes for applications in electroluminescent devices [J]. Adv. Mater., 2005, 17 (9):1109-1121.[2] Christoph U, Beatrice B, Christian F, et al. Recent developments in the application of phosphorescent Iridium(Ⅲ) complex systems [J]. Adv. Mater., 2009, 21 (44):4418-4441.[3] Ho C L, Wong W Y, Zhou G J, et al. Solution-processible multi-component cyclometalated Iridium phosphors for high-efficiency orange-emitting OLEDs and their potential use as white light sources [J]. Adv. Funct. Mater., 2007, 17 (15):2925-2936.[4] Yang C H, Cheng Y M, Chi Y, et al. Blue-emitting heteroleptic Iridium(Ⅲ) complexes suitable for high-efficiency phosphorescent OLEDs [J]. Angew Chem. Int. Ed., 2007, 46 (14):2418-2421.[5] Zheng T H, Choy W C H. High efficiency blue organic LEDs achieved by an integrated fluorescence-interlayer-phosphorescence emission architecture [J]. Adv. Funct. Mater., 2010, 20 (4):648-655.[6] Wei X Q, Peng J B, Xie M G, et al. High performance polymer electrophosphorescent devices with tert-butyl group modified iridium complexes as emitters [J]. Adv. Funct. Mater., 2007, 17 (16):3319-3325.[7] Jun S, Kang Y, Kim H S, et al. Effect of substitution of methyl groups on the luminescence performance of IrⅢ complexes: preparation, structures, electrochemistry, photophysical properties and their applications in organic light-emitting diodes (OLEDs) [J]. Eur. J. Inorg. Chem., 2004, 2004 (17):3415-3423.[8] Ding J Q, Gao J, Cheng Y X, et al. Highly efficient green-emitting phosphorescent Iridium dendrimers based on carbazole dendrons [J]. Adv. Funct. Mater., 2006, 16 (4):575-581.[9] Chen Z Q, Bian Z Q, Huang C H. Functional IrⅢ complexes and their applications [J]. Adv. Mater., 2010, 22 (13):1534-1539.[10] Liu Z W, Guan M, Bian Z Q, et al. Red phosphorescent iridium complex containing carbazole-functionalized -diketonate for highly efficient nondoped organic light-emitting diodes [J]. Adv. Funct. Mater., 2006, 16 (11):1441-1448.[11] Liang B, Wang L, Xu Y H, et al. High-efficiency red phosphorescent iridium dendrimers with charge- transporting dendrons: synthesis and electroluminescent properties [J]. Adv. Funct. Mater., 2007, 17 (17):3580-3589.[12] Peng T, Bi H, Liu Y, et al. Very high-efficiency red-electroluminescence devices based on an amidinate-ligated phosphorescent iridium complex [J]. J. Mater. Chem., 2009, 19 (43):8072-8074.[13] Lamansky S, Djurovich P, Thompson M E, et al. Synthesis and characterization of phosphorescent cyclometalated Iridium complexes [J]. Inorg. Chem., 2001, 40 (7):1704-1711.

Views

262

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research Progress of Neutral Blue Iridium Complexes in OLEDs

Electroluminescent Performances of Solution-processed Phosphorescent Organic Light-emitting Diodes Based on Cascade Energy Transfer of Ternary Blends

Synthesis and Optical Properties of Barium Doped CsPbBr₃ Blue Luminescence Quantum Dots

Photoluminescent Composite Materials by Embedding Carbon Dots in Zeolites

Synthesis, Luminescence Mechanism and Applications of Carbon Dots with Afterglow

Related Author

WU Shaohua

LU Guangzhao

ZHONG Xiangyong

XIE Qifei

YU Sheng

QI Yanyu

HAN Huabo

ZHOU Liang

Related Institution

State Key Laboratory of Rare Earth Resource Utilization， Changchun Institute of Applied Chemistry， Chinese Academy of Sciences

College of Chemistry and Chemical Engineering， Shangqiu Normal University

College of Chemistry and Materials Science， Hebei Normal University

Institute of Information Technology， Shenzhen Institute of Information Technology

Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province， Shantou University

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176862 Email：fgxbt@126.com
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰