氟化钇电子注入层对OLED器件性能的影响

张镭; 郑宣明; 林杰; 刘星元

doi:10.3788/fgxb20153608.0912

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氟化钇电子注入层对OLED器件性能的影响

器件制备及器件物理 | 更新时间：2020-08-12

- 氟化钇电子注入层对OLED器件性能的影响
- Effect of YF₃ Electron Injection Layer on The Performance of Organic Light-emitting Devices
- 发光学报 2015年36卷第8期页码：912-916
- 作者机构：
  
  1. 中国科学院大学, 北京 100049
  2. 发光学及应用国家重点实验室中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
- 基金信息：
  
  国家自然科学基金(51102228)资助项目()
- DOI：10.3788/fgxb20153608.0912
  中图分类号： TN383+.1
- 纸质出版日期：2015-8-3，
  
  网络出版日期：2015-6-5，
  
  收稿日期：2015-3-12，
  
  修回日期：2015-4-7，
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张镭, 郑宣明, 林杰等. 氟化钇电子注入层对OLED器件性能的影响[J]. 发光学报, 2015,36(8): 912-916

ZHANG Lei, ZHENG Xuan-ming, LIN Jie etc. Effect of YF<sub>3</sub> Electron Injection Layer on The Performance of Organic Light-emitting Devices[J]. Chinese Journal of Luminescence, 2015,36(8): 912-916
张镭, 郑宣明, 林杰等. 氟化钇电子注入层对OLED器件性能的影响[J]. 发光学报, 2015,36(8): 912-916 DOI： 10.3788/fgxb20153608.0912.

ZHANG Lei, ZHENG Xuan-ming, LIN Jie etc. Effect of YF<sub>3</sub> Electron Injection Layer on The Performance of Organic Light-emitting Devices[J]. Chinese Journal of Luminescence, 2015,36(8): 912-916 DOI： 10.3788/fgxb20153608.0912.

摘要

利用氟化钇(YF

)代替LiF作为电子注入层材料

以金属铝作为阴极

制备了有机电致发光器件(OLED).实验结果表明:适当厚度的YF

电子注入缓冲层可以增强阴极的电子注入能力

使得电子和空穴的浓度更加平衡

有效地提高器件的电致发光性能.其中

1.2 nm厚YF

的器件具有最小的起亮电压2.6 V

最高的电流效率8.52 cdA

-1

最大的亮度36 530 cdm

-2

.最大亮度和电流效率与LiF参考样品相比

分别提高了39%和53%.

Abstract

Organic light emitting devices (OLEDs) were fabricated with yttrium fluoride (YF

) as the electron injection layer instead of lithium fluoride (LiF) and aluminum as the cathode. The experiment results show that YF

injection buffer layer with appropriate thickness can effectively enhance the electron injection ability of the cathode

leading to more balanced concentration of electrons and holes

and optimized electroluminescent properties of OLEDs. The device with 1.2 nm-thick YF

layer has the minimum turn-on voltage of 2.6 V

the maximum current efficiency of 8.52 cdA

-1

and the maximum luminance of 36 530 cdm

-2

. Compared with LiF reference sample

the maximum brightness and current efficiency are increased by 39% and 53%

respectively.

关键词

有机电致发光器件氟化钇电子注入层

Keywords

organic light-emitting devicesyttrium fluorideelectron injection layer

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