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1. 国家电光源质量监督检验中心(北京) 北京,100022
2. 北京交通大学光电子技术研究所 教育部发光与光信息技术重点实验室 北京,100044
纸质出版日期:2015-6-3,
收稿日期:2015-3-17,
修回日期:2015-4-18,
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杨柳, 何志群, 董飞等. 混合型间隔层对荧磷混合式白色有机电致发光器件性能的影响[J]. 发光学报, 2015,36(6): 685-691
YANG Liu, HE Zhi-qun, DONG Fei etc. Improved Performance of Hybrid White Organic Light-emitting Diodes <em>via</em> Adjusting The Mixing Ratio in Spacer Layer[J]. Chinese Journal of Luminescence, 2015,36(6): 685-691
杨柳, 何志群, 董飞等. 混合型间隔层对荧磷混合式白色有机电致发光器件性能的影响[J]. 发光学报, 2015,36(6): 685-691 DOI: 10.3788/fgxb20153606.0685.
YANG Liu, HE Zhi-qun, DONG Fei etc. Improved Performance of Hybrid White Organic Light-emitting Diodes <em>via</em> Adjusting The Mixing Ratio in Spacer Layer[J]. Chinese Journal of Luminescence, 2015,36(6): 685-691 DOI: 10.3788/fgxb20153606.0685.
制备了基于新型蓝绿色荧光MQAB与红色磷光Ir(MDQ)
2
acac的荧磷混合式白色有机电致发光器件
并探讨了TPBI或UGH3两种间隔层及二者的混合间隔层的器件的发光性能。研究发现
采用TPBI和UGH3的混合间隔层可以调控载流子注入与传输的平衡。当
m
(TPBI):
m
(UGH3)= 1:1时
可有效地控制发光区域
使得器件性能得到优化
并获得发光亮度高达14 700 cd/m
2
的白色有机电致发光器件
最高电流效率可达11.60 cd/A
且器件具有较高的色稳定性。采用混合间隔层的器件比单用TPBI或UGH3作为间隔层的器件效率提高了200%~300%。
Novel hybrid white organic light-emitting diodes (HWOLEDs) based on blue-green fluorescent MQAB and red phosphorescent Ir(MDQ)
2
acac materials were fabricated. 1
3
5-tris(1-phenyl-1H-benzimidazol-2-yl)-benzene (TPBI)
1
3-bis(triphenylsilyl)benzene (UGH3) or a mixture of the two at different ratios was used as a spacer layer. It is found that the mixed spacer of TPBI and UGH3 is able to tune the hole injection/transport effectively. The optimized HWOLEDs with a spacer of
m
(TPBI):
m
(UGH3)=1:1 exhibits a luminance of 14 700 cd/m
2
and a current efficiency of 11.60 cd/A with an excellent color stability. In comparison with the devices using spacer of pure TPBI or pure UGH
3
layer
the current efficiency from the device using mixed spacer enhanced 200%-300%.
白色有机发光二极管荧磷混合发光混合间隔层
white organic light-emitting diodes (WOLED)hybrid fluorescence and phosphorescencemixed spacer layer
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