三波段白光有机电致发光器件及其色稳定性的控制

孟腾飞; 何志群; 刘姝; 刘淑洁; 梁春军; 张娇

doi:10.3788/fgxb20123310.1095

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三波段白光有机电致发光器件及其色稳定性的控制

器件制备及器件物理 | 更新时间：2020-08-12

- 三波段白光有机电致发光器件及其色稳定性的控制
- Towards Color Stable Three-band White Organic Light-emitting Diodes
- 发光学报 2012年33卷第10期页码：1095-1100
- 作者机构：
  
  1. 北京交通大学光电子技术研究所教育部发光与光信息技术重点实验室北京,100044
  2. 国家电光源质量监督检验中心(北京) 北京,100022
- 作者简介：
- 基金信息：
  
  国家自然科学基金(21174016)();国际科技合作计划(2008DFA61420)();北京市科委(Z090803044009001)();北京交通大学基金(200
- DOI：10.3788/fgxb20123310.1095
  中图分类号： TN383+.1
- 纸质出版日期：2012-10-10，
  
  收稿日期：2012-7-13，
  
  修回日期：2012-8-20，
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孟腾飞, 何志群, 刘姝, 刘淑洁, 梁春军, 张娇. 三波段白光有机电致发光器件及其色稳定性的控制[J]. 发光学报, 2012,(10): 1095-1100

MENG Teng-fei, HE Zhi-qun, LIU Shu, LIU Shu-jie, LIANG Chun-jun, ZHANG Jiao. Towards Color Stable Three-band White Organic Light-emitting Diodes[J]. Chinese Journal of Luminescence, 2012,(10): 1095-1100
孟腾飞, 何志群, 刘姝, 刘淑洁, 梁春军, 张娇. 三波段白光有机电致发光器件及其色稳定性的控制[J]. 发光学报, 2012,(10): 1095-1100 DOI： 10.3788/fgxb20123310.1095.

MENG Teng-fei, HE Zhi-qun, LIU Shu, LIU Shu-jie, LIANG Chun-jun, ZHANG Jiao. Towards Color Stable Three-band White Organic Light-emitting Diodes[J]. Chinese Journal of Luminescence, 2012,(10): 1095-1100 DOI： 10.3788/fgxb20123310.1095.

摘要

制备并研究了基于3种小分子荧光材料的白光有机电致发光器件。发光层采用红色发光材料DCJTB掺杂绿光材料Alq

构成混合发光层

与OXD-7构成的蓝色发光层形成异质结的结构

并以NPB为空穴注入层。通过改变结构参数详细研究了发射光谱及其色坐标的电场依赖性。通过分析载流子注入/传输特性

控制激子的复合区域等措施得到了色坐标稳定性好、光谱丰富的高性能白光电致发光器件。经过优化的器件结构可以覆盖更大的可见光区域

当电压从9V增加到13V时

色坐标仅从CIE(

)=(0.364

0.314)偏移到CIE

=(0.332

0.291)

具有较好的色稳定性。

Abstract

White organic light-emitting diodes based on three small molecular fluorescence materials were designed and prepared.The emitting layers consisted of a red dye

4-(dicyanomethylene)-2-tert-butyl-6-(1

7-tetra-methyljulolidin-4-yl-vinyl)-4H-pyran (DCJTB)

doped in a green layer of 8-hydroxyquinoline aluminum salt (Alq

)

which further formed a heterojunction with a blue layer of 2

2'-(1

3-phenylene)-bis (OXD-7).N

N'-bis-(naphthalene-1-yl)-N

N'-bis(phenyl)-benzidine (NPB) was used as a hole transport layer.Voltage dependent emission spectra and their colorimetric characteristics were manipulated using different device structures.After adjusting the carrier injection/transporting properties

the exciton recombination region was confined and the color stability was improved against the driving voltages.An improved white light-emitting device has a wide spectrum in visible range and a good color stability

its color coordinates change slightly from CIE(

)=(0.364

0.314) to CIE(

)=(0.332

0.291) when the driven voltage changes from 9.1 V to 12.9 V.

关键词

白光电致发光三波段DCJTB:Alq3掺杂激子复合色坐标稳定性

Keywords

white OLEDthree-bandDCJTB:Alq3 dopingexciton recombinationcolor stability

references

Reineke S,Lindner F,Schwartz G,et al. White organic light-emitting diodes with fluorescent tube efficiency [J]. Nature,2009,459(7244):234-238.

Lei G,Wang L,Qiu Y.Blue phosphorescent dye as sensitizer and emitter for white organic light-emitting diodes [J]. Appl.Phys.Lett., 2004,85(22):5403-5405.

Park J H,Lee T W,Kim Y C,et al. White polymer light-emitting devices from ternary-polymer blend with concentration gradient [J]. Chem.Phys.Lett., 2005,403(4-6):293-297.

Deshpande R S,Bulovi c ＇ V,Forrest S R.White-light-emitting organic electroluminescent devices based on interlayer sequential energy transfer [J]. Appl.Phys.Lett.,1999,75(7):888-890.

Sun Y,Giebink N C,Kanno H,et al. Management of singlet and triplet excitons for efficient white organic light-emitting devices [J]. Nature, 2006,440(7086):908-912.

Attar H A A,Monkman A P,Tavasli M,et al. White polymeric light-emitting diode based on a fluorene polymer/Ir complex blend system [J]. Appl.Phys.Lett.,2005,86(12):121101-1-3.

Chen J X,Chen J D,Wu Z Z.White OLED for Lighting [M].Shanghai:Shanghai Jiaotong University Press,2011:24-25 (in Chinese).

Chang M Y,Wang C H,Lin S C,et al. High-brightness,high-color-purity,white organic light-emitting diodes featuring multiple emission layers [J]. J.Appl.Phys.,2009,105(6):064318-1-6.

Yang S H,Liu M H.Stable and highly bright white organic light-emitting diode based on 4,4',4″-tris(N-3-methylphenyl-N-phenyl-amino)-triphenylamine [J]. J.Appl.Phys., 2006,100(8):083111-1-4.

Yu L Z,Jiang X Y,Zhang Z L,et al. Investigation of Frster-type energy transfer in organic light-emitting devices with 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethy ljulolidin-4-yl-vinyl)-4H-pyran doped cohost emitting layer [J]. J.Appl.Phys.,2009,105(1):013105-1-4.

Mu L,He Z,Kong X,et al.Towards color stable blue primary for displays:Suppress field-dependent color change in a multilayered electroluminescent device [J]. J.Disp.Technol.,2011,7(2):96-104.

Hou L D,Duan L,Qiao J,et al. Efficient single layer solution-processed blue-emitting electrophosphorescent devices based on a small-molecule host [J]. Appl.Phys.Lett., 2008,92(26):263301-1-3.

Wang Y M,Teng F,Xu Z,et al. Trap effect of an ultrathin DCJTB layer in organic light-emitting diodes [J]. Materials Chemistry and Physics,2005,92(2-3):291-294.

Park Y S,Kang J W,Kang D M,et al. Efficient,color stable white organic light-emitting diode based on high energy level yellowish-green dopants [J]. Advanced Materials, 2008,20(10):1957-1961.

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