基于载流子平衡的效率及亮度提高的有机蓝光器件

穆晓龄; 曲加伟; 郭永林; 梁续旭; 赵毅

doi:10.3788/fgxb20153608.0917

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基于载流子平衡的效率及亮度提高的有机蓝光器件

器件制备及器件物理 | 更新时间：2020-08-12

- 基于载流子平衡的效率及亮度提高的有机蓝光器件
- Blue Organic Light-emitting Device with Improved Efficiency and Luminance Based on Carriers Balance
- 发光学报 2015年36卷第8期页码：917-922
- 作者机构：
  
  吉林大学电子科学与工程学院集成光电子学国家重点联合实验室, 吉林长春 130012
- 作者简介：
- 基金信息：
  
  国家自然科学基金(61275033)资助项目()
- DOI：10.3788/fgxb20153608.0917
  中图分类号： TN383+.1
- 纸质出版日期：2015-8-3，
  
  收稿日期：2015-4-25，
  
  修回日期：2015-6-10，
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穆晓龄, 曲加伟, 郭永林等. 基于载流子平衡的效率及亮度提高的有机蓝光器件[J]. 发光学报, 2015,36(8): 917-922

MU Xiao-ling, QU Jia-wei, GUO Yong-lin etc. Blue Organic Light-emitting Device with Improved Efficiency and Luminance Based on Carriers Balance[J]. Chinese Journal of Luminescence, 2015,36(8): 917-922
穆晓龄, 曲加伟, 郭永林等. 基于载流子平衡的效率及亮度提高的有机蓝光器件[J]. 发光学报, 2015,36(8): 917-922 DOI： 10.3788/fgxb20153608.0917.

MU Xiao-ling, QU Jia-wei, GUO Yong-lin etc. Blue Organic Light-emitting Device with Improved Efficiency and Luminance Based on Carriers Balance[J]. Chinese Journal of Luminescence, 2015,36(8): 917-922 DOI： 10.3788/fgxb20153608.0917.

摘要

研究了在两空穴传输层之间插入Bphen中间层对有机蓝光器件(BOLEDs)效率的影响.结果表明

其对空穴的阻挡作用使得电子与空穴在发光区内达到相对平衡

减少了激子-极化子猝灭几率

从而提高了有机蓝光器件的效率和亮度.器件的最大电流效率从16.12 cd/A增加到20.52 cd/A

相对提高了27.30%;最大功率效率从14.23 lm/W增加到17.64 lm/W

相对提高了23.96%.文中对提高效率的物理机制进行了详细的阐述.

Abstract

Blue organic light-emitting device (BOLED) with a Bphen interlayer inserted between two hole transport layers was demonstrated. It utilized the hole blocking effect of Bphen interlayer to obtain more balance for electrons and holes in the recombination zone. It reduced the probability of exciton-polaron quenching

thereby improved efficiency and luminance of blue organic light-emitting device. The current efficiency improved about 27.30%

from 16.12 cd/A to 20.52 cd/A

and the power efficiency improved about 23.96% from 14.23 lm/W to 17.64 lm/W. The physical mechanisms on the improvement of efficiency were discussed in detail.

关键词

BOLEDsBphen中间层激子-极化子猝灭载流子平衡

Keywords

BOLEDsBphen interlayerexciton-polaron quenchingcarriers balance

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