[1]王豪杰,周远明. 基于TADF共掺杂的蓝光OLED器件性能研究[J].湖北工业大学学报,2021,(2):19-23.
　WANG Haojie,ZHOU Yuanming. Study on the Luminescence of Blue OLED Devices Based on Thermally Activated Delayed Fluorescence Material (TADF)[J].,2021,(2):19-23.
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 基于TADF共掺杂的蓝光OLED器件性能研究()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2021年第2期
页码:
19-23
栏目:
湖北工业大学学报
出版日期:
2021-04-22

文章信息/Info

Title:
 Study on the Luminescence of Blue OLED Devices Based on Thermally Activated Delayed Fluorescence Material (TADF)
文章编号:
1003-4684(2021)02-0019-05
作者:
 王豪杰1;  周远明2
1 湖北工业大学电气与电子工程学院， 湖北 武汉 430068；
2 湖北工业大学理学院， 湖北 武汉 430068
Author(s):
 WANG Haojie1;  ZHOU Yuanming2
1 School of Electrical and Electronic Engineering, Hubei Univ. of Tech., Wuhan 430068,China;
2 School of Sciences, Hubei Univ. of Tech., Wuhan 430068,China
关键词:
 ; 热活化延迟荧光材料(TADF);  蓝光OLED器件;  发光
Keywords:
 ; thermally activated delayed fluorescence;  blue OLED;  luminescence
分类号:
TN383
文献标志码:
A
摘要:
 为提升蓝光OLED的发光性能，采用DPEPO和DMAC-DPS两种热活化延迟荧光(TADF)材料构成的主客体掺杂结构作为蓝光OLED器件的发光层，研究器件结构、客体掺杂浓度等因素对器件性能的影响。实验结果表明：采用MoO3薄膜作为空穴注入层有助于增强空穴注入和传输能力，进而提升器件性能。当DMAC-DPS掺杂浓度为30%时，器件性能是最优的，最大亮度为5650 cd/m2，最大外量子效率(EQE)为8.63%。掺杂浓度进一步增大会导致器件性能的衰退，可能是因为高浓度导致的激子淬灭导致的。TADF有助于提升蓝光OLED器件的性能并有望应用于商业化的蓝光OLED器件中。
Abstract:
 Organic light emitting diodes (OLED) are widely used in display and lighting fields because of their spontaneous radiation, high color purity, and low energy consumption. Compared with red and green OLEDs, blue OLEDs have lower performance. In this paper, a host guest doped structure was employed as the emission layer by using two thermally active delayed fluorescence (TADF) materials including DPEPO and DMAC DPS. Blue OLED devices were prepared, and the influence of the device structure, the DMAC DPS doping concentration and other factors on the device performance was studied. The use of MoO 3 film as the hole injection layer helps to enhance the hole injection and transport ability, thereby improving the device performance. When the DMAC DPS doping concentration is 30%, the optimal device performance was obtained, in which the maximum brightness is 5650 cd/m2 and the maximum quantum efficiency is 8.63%. Further increase of the doping concentration will lead to the degradation of the device performance, which may be caused by the high doping concentration induced quenching of excitons. These experimental results show that TADF can enhance the performance of blue OLEDs and has the potential to be used in commercial blue OLED devices.

参考文献/References:

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备注/Memo

备注/Memo:
 ［收稿日期］ 2020-12-08
［基金项目］ 湖北省科技厅项目（2016BKJ005）；太阳能高效利用及储能运行控制湖北省重点实验室开放研究基金（HBSEES201801, HBSEES201705）
［第一作者］ 王豪杰(1995-)， 男， 江苏南通人，湖北工业大学硕士研究生，研究方向为半导体材料与器件
［通信作者］ 周远明(1984-)， 男， 湖北武汉人，湖北工业大学副教授，研究方向为半导体材料与器件，新能源技术
更新日期/Last Update: 2021-04-23