Organic Red Electroluminescence Devices Based on PVK with High Color Purity and High Stability

YANG Shao-peng; WANG Li-shun; QIU Xiao-li; ZHAO Fang-chao; JU Xiu-qin; LIU Su-ling

doi:null

您当前的位置：

首页 >

文章列表页 >

Organic Red Electroluminescence Devices Based on PVK with High Color Purity and High Stability

paper | 更新时间：2020-08-12

- Organic Red Electroluminescence Devices Based on PVK with High Color Purity and High Stability
- Chinese Journal of Luminescence Vol. 30, Issue 6, Pages: 728-733(2009)
- 作者机构：
  
  河北大学物理科学与技术学院,河北保定,071002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN383.1;TN873.3
- Received：25 February 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 December 2009，
  
  Published：30 December 2009
- 稿件说明：
移动端阅览
YANG Shao-peng, WANG Li-shun, QIU Xiao-li, et al. Organic Red Electroluminescence Devices Based on PVK with High Color Purity and High Stability[J]. Chinese journal of luminescence, 2009, 30(6): 728-733.
DOI：

YANG Shao-peng, WANG Li-shun, QIU Xiao-li, et al. Organic Red Electroluminescence Devices Based on PVK with High Color Purity and High Stability[J]. Chinese journal of luminescence, 2009, 30(6): 728-733. DOI：

摘要

利用旋涂法和真空蒸镀法相结合的方法

根据能量空间传递的原理制备了PVK ∶ Ir(piq)

(acac)体系的红色有机电致发光显示器件。器件的结构为ITO/CuPc/PVK ∶ Ir(piq)

(acac)/BCP/Alq

/LiF/Al。研究了不同主客体掺杂比对器件发光性能的影响

得到了高色纯度、单色性较好的红光器件。当Ir(piq)

(acac)掺杂的质量比为1 ∶ 0.08时

器件的综合性能达到最佳

发光峰位于625 nm

CIE坐标为(

=0.66

=0.33)。通过对各层厚度的合理选择

形成相对优化的微腔结构

充分利用其对光谱的窄化效应

使得器件的EL光谱的发射半峰全宽仅为55 nm

提高了器件的发光性能。器件光谱具有很好的单色性

色纯度达到98.2%。

Abstract

Since Tang and VanSlyke developed an efficient organic light-emitting diode (OLED) based on an organic bilayer structure in 1987

the efficiency has been increased

particularly

the use of n- and p-doped organic transport materials with small-molecule OLEDs leads to improving conductivities and significantly better injection of charge carriers into the OLED. Further concepts have been established such as the insertion of additional organic layers as exciton and charge carrier blockers which can localize the emission zone and prevent exciton quenching effects as well as charge carrier imbalance. In spite of rapid advances in the organic electroluminescent device (OELD)

there have still been many hurdles to be overcome for manufacturing a high-resolution full color display. The development of a stable

efficient

and saturated red device remains an important goal for OLEDs which is obtained by using a discrete emitting layer or doping fluorescent and phosphorescent dyes into a host layer. In this report

a organic red electroluminescent device was fabricated based on hole transporting material PVK doped with Ir(piq)

(acac) by the spin-coating method and vacuum evaporate plating technology. The structure of the device is ITO/CuPc/PVK ∶ Ir(piq)

(acac)/BCP/Alq

/LiF/Al. The effect of the doping ratio on the performance of the device was investigated. The device has high perfor-mance when the doping ratio is 1 ∶ 0.08 in mass that the CIE coordinate is located at (

=0.66

=0.33) and the main emission peak is at 625 nm. The full width at half maximum of the spectrum is only 55 nm. It is attributed to the structure of micro-cavity which is improved by the reasonable thickness of films. The color of a dye can be modified by inserting it into a microcavity. Indeed

a microcavity is formed within a OLED by weak reflections from interfaces. The spectrum of the device has fine monochromaticity that the color purity is 98.2%. The luminescence performance of the device is well improved.

关键词

Keywords

references

. Liu Hongyu, Sun Runguang. Laminated active matrix organic light-emitting devices[J]. Appl. Phys. Lett., 2008, 92 (6):063304-1-3.

. Tang C W, VanSlyke S A. Organic electroluminescent diodes [J]. Appl. Phys. Lett., 1987, 51 (12):913-915.

. Baldo M A, Lamansky S, Burrows P E, et al. Very high-efficiency green organic light-emitting devices based on electrophosphorescence [J]. Appl. Phys. Lett., 1999, 75 (1):1-4.

. Hu Zhong, Xu Hongguang, Zhuang Zhulei, et al. Red organic light-emitting diodes with co-host system [J]. Chin. J. Liq. Cryst. Displ. (液晶与显示), 2007, 22 (1):65-68 (in Chinese).

. Li Hongyan, Zhang Yuxiang, Zhang Hongke, et al. Preparation of double luminescent layer white OLEDs [J]. Chin. J. Liq. Cryst. Displ. (液晶与显示), 2007, 22 (1):69-73 (in Chinese).

. Ma Changqi, Wang Xuesong, Zhang Baowen, et al. Progress in red emitters for organic light-emitting diodes [J]. Progress in Chem. (化学进展), 2004, 16 (3):463-473 (in Chinese).

. Zhao Weiming, Zhu Wenqing, Zhang Buxin. Dye doped red organic thin film electro-luminescent devices [J]. Chin. J. Lumin. (发光学报), 2000, 21 (1):78-80 (in Chinese).

. Ma Fengying, Zhang Chunyu, Liu Xingyuan, et al. Red emission from microcavity organic light-emitting diode [J]. Acta Photonica Sinica (光子学报), 2004, 33 (7):835-838 (in Chinese).

. Jia Yong, Deng Zhenbo, Xiao Jing, et al. The effect of PBD as electron-transporting layer in Alq3 ∶ DCJTB organic light emitting devices [J]. Chin. J. Lumin. (发光学报), 2008, 29 (1):23-26 (in English).

. Ma Tao, Yu Junsheng, Li Lu, et al. Characterization of organic light-emitting devices based on NPB doped in poly(N-vinylcarbazole) matrix [J]. Chin. J. Lumin. (发光学报), 2008, 29 (5):809-814 (in Chinese).

. Ma Fengying, Jin Changqing, Qin Li, et al. Double mode emitting from a novel organic microcavity diode [J]. Acta Optica Sinica (光学学报), 2004, 24 (1):76-78 (in Chinese).

. Yan Lingling, Li Hongjian, Zhang Jianhua, et al. Electroluminescence spectra in microcavity organic light-emitting devices [J]. Chin. J. Lumin. (发光学报), 2007, 28 (2):173-178 (in English).

. Xie Zefeng, Yuan Yongbo, Chen Shuming, et al. Study on metal microcavity DLEDs with improved efficiency [J]. Chin. J. Lumin.(发光学报), 2008, 29 (1):37-40 (in Chinese).

. Grüner J, Cacialli F, Friend R H. Emission enhancement in single layer conjugated polymer microcavities [J]. J. Appl. Phys., 1996, 80 (1):207-215.

. Gao X C, Cao H, Huang C H, et al. Electroluminescence of a novel terbium complex [J]. Appl. Phys. Lett., 1998, 72 (18):2217-2219.

. Tang C W, Van Slyke S A, Chen C H. Electroluminescence of doped organic thin films [J]. J. Appl. Phys., 1989, 65 (9):3610-3616.

. Wang Jun, Wei Xiaoqiang, Rao Haibo, et al. High-efficiency and high-stability phosphorescent OLED based on new Ir complex [J]. Acta Phys. Sin.(物理学报), 2007, 56 (2):1156-1161 (in Chinese).

. Shen Lin, Xu Hao, Ye Danqin, et al. High efficiency and high color purify red organic electrophosphrescent devices using BAlq as host material [J]. Chin. J. Lumin.(发光学报), 2008, 29 (1):51-55 (in Chinese).

. Tang Xiaoqing, Yu Junsheng, Li Lu, et al. Effect of an ultrathin BCP layer on organic light-emitting devices performance [J]. Chin. J. Lumin. (发光学报), 2008, 29 (2):253-258 (in Chinese).

. Tsutsui T, Takada N, Saito S, et al. Sharply directed emission in organic electroluminescent diodes with an optical-microcavity structure [J]. Appl. Phys. Lett., 1994, 65 (15):1868-1869.

Views

200

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Efficient and Long Lifetime Blue Light Material Based on Anthracene[2,3-b]benzofuran Framework

Progress in Inkjet Printing Organic Electroluminescent Display Materials and Devices

Study on Carriers Transport Mechanism in OLED by Variable Temperature Transient Electroluminescence

High-efficiency Phosphorescent Organic Light-emitting Devices Based on Bipolar Host

Ideal White Organic Electroluminescent Device Realized by Inserting An Ultra Thin Layer

Related Author

WANG Xiaowei

SUN Jun

YUAN Jiangbo

ZHANG Hongke

MAO Tao

WANG Chen

HE Haixiao

TIAN Mi

Related Institution

Xi'an Manareco New Materials Co.， Ltd.

Guangdong Juhua Printed Display Technology Co. Ltd

College of Materials Science and Optoelectronic Devices, University of Chinese Academy of Sciences

Key Laboratory of Semiconductor Materials Science, Chinese Academy of Sciences

State Key Laboratory on Integrated Optoelectronics, Jilin University Region, College of Electronic Science and Engineering, Jilin 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