混合型间隔层对荧磷混合式白色有机电致发光器件性能的影响

杨柳; 何志群; 董飞; 刘姝; 刘淑洁; 梁春军

doi:10.3788/fgxb20153606.0685

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混合型间隔层对荧磷混合式白色有机电致发光器件性能的影响

器件制备及器件物理 | 更新时间：2020-08-12

- 混合型间隔层对荧磷混合式白色有机电致发光器件性能的影响
- Improved Performance of Hybrid White Organic Light-emitting Diodes via Adjusting The Mixing Ratio in Spacer Layer
- 发光学报 2015年36卷第6期页码：685-691
- 作者机构：
  
  1. 国家电光源质量监督检验中心(北京) 北京,100022
  2. 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
- 作者简介：
- 基金信息：
  
  国家自然科学基金(21174016,11474017)();教育部博士点专项基金(20120009110031)资助项目()
- DOI：10.3788/fgxb20153606.0685
  中图分类号： TN383+.1
- 纸质出版日期：2015-6-3，
  
  收稿日期：2015-3-17，
  
  修回日期：2015-4-18，
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杨柳, 何志群, 董飞等. 混合型间隔层对荧磷混合式白色有机电致发光器件性能的影响[J]. 发光学报, 2015,36(6): 685-691

YANG Liu, HE Zhi-qun, DONG Fei etc. Improved Performance of Hybrid White Organic Light-emitting Diodes <em>via</em> Adjusting The Mixing Ratio in Spacer Layer[J]. Chinese Journal of Luminescence, 2015,36(6): 685-691
杨柳, 何志群, 董飞等. 混合型间隔层对荧磷混合式白色有机电致发光器件性能的影响[J]. 发光学报, 2015,36(6): 685-691 DOI： 10.3788/fgxb20153606.0685.

YANG Liu, HE Zhi-qun, DONG Fei etc. Improved Performance of Hybrid White Organic Light-emitting Diodes <em>via</em> Adjusting The Mixing Ratio in Spacer Layer[J]. Chinese Journal of Luminescence, 2015,36(6): 685-691 DOI： 10.3788/fgxb20153606.0685.

摘要

制备了基于新型蓝绿色荧光MQAB与红色磷光Ir(MDQ)

acac的荧磷混合式白色有机电致发光器件

并探讨了TPBI或UGH3两种间隔层及二者的混合间隔层的器件的发光性能。研究发现

采用TPBI和UGH3的混合间隔层可以调控载流子注入与传输的平衡。当

(TPBI):

(UGH3)= 1:1时

可有效地控制发光区域

使得器件性能得到优化

并获得发光亮度高达14 700 cd/m

的白色有机电致发光器件

最高电流效率可达11.60 cd/A

且器件具有较高的色稳定性。采用混合间隔层的器件比单用TPBI或UGH3作为间隔层的器件效率提高了200%~300%。

Abstract

Novel hybrid white organic light-emitting diodes (HWOLEDs) based on blue-green fluorescent MQAB and red phosphorescent Ir(MDQ)

acac materials were fabricated. 1

5-tris(1-phenyl-1H-benzimidazol-2-yl)-benzene (TPBI)

3-bis(triphenylsilyl)benzene (UGH3) or a mixture of the two at different ratios was used as a spacer layer. It is found that the mixed spacer of TPBI and UGH3 is able to tune the hole injection/transport effectively. The optimized HWOLEDs with a spacer of

(TPBI):

(UGH3)=1:1 exhibits a luminance of 14 700 cd/m

and a current efficiency of 11.60 cd/A with an excellent color stability. In comparison with the devices using spacer of pure TPBI or pure UGH

layer

the current efficiency from the device using mixed spacer enhanced 200%-300%.

关键词

白色有机发光二极管荧磷混合发光混合间隔层

Keywords

white organic light-emitting diodes (WOLED)hybrid fluorescence and phosphorescencemixed spacer layer

references

MeyerJ, Hamwi S, Blow T, et al. Highly efficient simplified organic light emitting diodes [J]. Appl. Phys. Lett., 2007, 91(11):113506-1-3.

Zhu Y G, Liang C J, Liu S, et al. Effect of interlayer on phosphorescent white organic light-emitting diodes [J]. Chin. J. Lumin.(发光学报), 2014, 35(7):824-829 (in Chinese).

Leo K, Reineke S, Lindner F, et al. White organic light-emitting diodes with fluorescent tube efficiency [J]. Nature, 2009, 459:234-238.

Liu C B, Zhao J, Su B, et al. Research progress of Re (Ⅰ) complexes in OLEDs [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2012, 27(6):742-751 (in Chinese).

Meng T F, He Z Q, Liu S, et al. Towards color stable three-band white organic light-emitting diodes [J]. Chin. J. Lumin.(发光学报), 2012, 33(10):1095-1100 (in Chinese).

Zhu J Z, Li W L. Double host high efficiency white organic light emitting diodes with high color render index [J]. Chin. J. Lumin.(发光学报), 2012, 33(3):229-303 (in Chinese).

Kondakov D Y, Pawlik T D, Hatwar T K, et al. Triplet annihilation exceeding spin statistical limit in highly efficient fluorescent organic lighting-emitting diodes [J]. J. Appl. Phys., 2009, 106(12):124510-1-8.

Baldo M A, O'Brien D F, You Y, et al. Highly efficient phosphorescent emission from organic electroluminescent devices [J]. Nature, 1998, 395:151-154.

Chen P, Xie W, Li J, et al. White organic light-emitting devices with a bipolar transport layer between blue fluorescent and orange phosphorescent emitting layers [J]. Appl. Phys. Lett., 2007, 91(2):023505-1-3.

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, 440:908-912.

Seo J H, Park J S, Lee S J, et al. Codoped spacer ratio effect of hybrid white organic light-emitting diodes [J]. Curr. Appl. Phys., 2011, 11:564-567.

Gao C H, Shi X B, Zhou D Y, et al, Highly efficient white organic light-emitting diodes with controllable excitons behavior by a mixed interlayer between fluorescence blue and phosphorescence yellow-emitting layers [J]. Int. J. Photoenergy, 2013, 2013:831765-1-7.

Marina E K, Joseph C D, Denis Y K, et al. Highly efficient fluorescent-phosphorescent triplet-harvesting hybrid organic light-emitting diodes [J]. J. Appl. Phys., 2010, 107(1):014515-1-3.

Kuwabar Y, Ogawa H, Inada H, et al. Thermally stable multilared organic electroluminescent devices using novel starburst molecules,4,4',4"-tri(N-carbazolyl) triphenylamine(TCTA) and 4,4',4"-tris(3-methylphenylphenylamino) triphenylamine(m-MTDATA), as hole-transport materials [J]. Adv. Mater., 1998, 6:677-681.

Ren X, Li J, Holmes R J, et al. Ultrahigh energy gap hosts in deep blue organic electrophosphorescent devices [J]. Chem. Mater., 2004, 16:4743-4747.

Lian J R, Niu F F, Liu Y W, et al. Improved hole-blocking and electron injection using a TPBI interlayer at the cathode interface of OLEDs [J]. Chin. Phys. Lett., 2011, 28(4):047803-1-3.

Hao Y Y, Lei J F, Fang X H, et al. Theoretical studies on geometrical and electronic structure of electroplex at the NPB/PBD interface in organic lighting-emitting diodes [J]. Curr. Appl. Phys., 2010, 10(3):744-748.

Song D D, Zhao S L, Luo Y C, et al. Causes of efficiency roll-off in phosphorescent organic light emitting devices: Triplet-triplet annihilation versus triplet-polaron quenching [J]. Appl. Phys. Lett., 2010, 97(24):243304-1-3.

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