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
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.
Effect of YF3 Electron Injection Layer on The Performance of Organic Light-emitting Devices
Organic light emitting devices (OLEDs) were fabricated with yttrium fluoride (YF
3
) as the electron injection layer instead of lithium fluoride (LiF) and aluminum as the cathode. The experiment results show that YF
3
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
3
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.
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references
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Related Institution
School of Optical and Electronic Technology, China Jiliang University
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
西安交通大学电子与信息工程学院信息光子技术省重点实验室
State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
Graduate University of Chinese Academy of Sciences, Beijing 100039, China