光谱稳定的互补色双发光层高效混合白光OLED

方达; 张智强; 吴震轩; 张川; 张宏梅

doi:10.3788/fgxb20173802.0201

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光谱稳定的互补色双发光层高效混合白光OLED

器件制备及器件物理 | 更新时间：2020-08-12

- 光谱稳定的互补色双发光层高效混合白光OLED
- High Efficiency Hybrid White Organic Light-emitting Diodes with Stable Emission Spectrum Based on Two Separately Monochromatic Emission Layers
- 发光学报 2017年38卷第2期页码：201-206
- 作者机构：
  
  1. 南京邮电大学有机电子与信息显示国家重点实验室培育基地, 信息材料与纳米技术研究院, 江苏南京 210023
  2. 南京邮电大学江苏国家先进材料协同创新中心, 江苏南京 210023
  3. 中国科学院长春应用化学研究所高分子物理与化学国家重点实验室, 吉林长春 130022
- 作者简介：
- 基金信息：
  
  中科院BR计划;国家杰出青年科学基金（50325312）;国家重点基础研究发展计划（973）（2009CB623604）资助项目
- DOI：10.3788/fgxb20173802.0201
  中图分类号： TN383.+1
- 纸质出版日期：2017-2-5，
  
  收稿日期：2016-7-7，
  
  修回日期：2016-11-7，
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方达, 张智强, 吴震轩等. 光谱稳定的互补色双发光层高效混合白光OLED[J]. 发光学报, 2017,38(2): 201-206

FANG Da, ZHANG Zhi-qiang, WU Zhen-xuan etc. High Efficiency Hybrid White Organic Light-emitting Diodes with Stable Emission Spectrum Based on Two Separately Monochromatic Emission Layers[J]. Chinese Journal of Luminescence, 2017,38(2): 201-206
方达, 张智强, 吴震轩等. 光谱稳定的互补色双发光层高效混合白光OLED[J]. 发光学报, 2017,38(2): 201-206 DOI： 10.3788/fgxb20173802.0201.

FANG Da, ZHANG Zhi-qiang, WU Zhen-xuan etc. High Efficiency Hybrid White Organic Light-emitting Diodes with Stable Emission Spectrum Based on Two Separately Monochromatic Emission Layers[J]. Chinese Journal of Luminescence, 2017,38(2): 201-206 DOI： 10.3788/fgxb20173802.0201.

摘要

利用两种颜色的发光层制备了光谱稳定的高效混合WOLED。其中蓝光发光层用14%质量分数的BNE掺杂在BePP

中，橙光发光层用1%质量分数的Ir（bt）

（acac）掺杂在49.5%质量分数的NPB和49.5%质量分数的BePP

组成的混合主体中。在不利用任何光耦合技术的条件下，器件在亮度为100 cd/m

时，功率效率可以达到39 lm/W；当亮度提高到1 000 cd/m

时，效率仅发生轻微滚降至27.5 lm/W。器件的光谱稳定，亮度在1 000 cd/m

和10 000 cd/m

时，CIE坐标分别为（0.37，0.48）和（0.37，0.47）。良好的光谱稳定性归结于设计的双极性中间层平衡了其两侧激子的产生。

Abstract

Highly efficient hybrid white organic light-emitting diode (WOLED) with stable emission spectrum was fabricated by using two separately monochromatic emission layers (EML). The blue emissive layer was based on 14%(mass fraction) trans-1

2-bis(6-(N

N-di-p-tolylamino)-Naphthalene-2-yl)ethene (BNE) doped in BePP

and the orange emissive layer was based on 1%(mass fraction) Ir(bt)

(acac) doped in a mixed-host of 49.5%(mass fraction) NPB and 49.5%(mass fraction) BePP

. Without the use of any outcoupling techniques

this device can achieve a power efficiency of 39 lm/W at brightness of 100 cd/m

and slightly rolls off to 27.5 lm/W at brightness of 1 000 cd/m

. There is nearly no color shift with the bias voltages as the Commission Internationale de L'Eclairage (CIE) coordinates are (0.37

0.48) and (0.37

0.47) at 1 000 cd/m

and 10 000 cd/m

respectively. The stable emission spectrum can be contributed to the well designed ambipolar interlayer which successfully balances the exciton generation evenly on its both sides.

关键词

混合WOLED双发光层光谱稳定

Keywords

hybrid white organic light-emitting diodestwo emissive layersstable emission spectrum

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