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1. 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
2. 吉林建筑大学 材料科学与工程学院, 吉林 长春 130118
纸质出版日期:2014-12-3,
收稿日期:2014-9-7,
修回日期:2014-10-12,
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张春玉, 秦莉, 王洪杰. 红色磷光微腔有机电致发光器件的发光性能[J]. 发光学报, 2014,35(12): 1464-1468
ZHANG Chun-yu, QIN Li, WANG Hong-jie. Luminescence Properties of Red Phosphorescent Microcavity Organic Light-emitting Devices[J]. Chinese Journal of Luminescence, 2014,35(12): 1464-1468
张春玉, 秦莉, 王洪杰. 红色磷光微腔有机电致发光器件的发光性能[J]. 发光学报, 2014,35(12): 1464-1468 DOI: 10.3788/fgxb20143512.1464.
ZHANG Chun-yu, QIN Li, WANG Hong-jie. Luminescence Properties of Red Phosphorescent Microcavity Organic Light-emitting Devices[J]. Chinese Journal of Luminescence, 2014,35(12): 1464-1468 DOI: 10.3788/fgxb20143512.1464.
制备了结构为 G/DBR/ITO/MoO
3
(1 nm)/TcTa(55 nm )/CBP:Ir(piq)
2
acac(44 nm
6%)/TPBI(55 nm)/LiF(1 nm)/Al(80 nm)的红色磷光微腔有机电致发光器件(MOLED)
同时制作了无腔对比器件OLED
研究微腔结构对磷光器件发光性能的影响.研究发现
OLED的电致发光(EL)峰值为626 nm
半高全宽(FWHM)为92 nm;MOLED的发光峰值为628 nm
FWHM为42 nm
窄化了1/2.MOLED的最大亮度、最大电流效率、最大外量子效率(EQE)分别为121 000 cd/m
2
、27.8 cd/A和28.4%
OLED的最大亮度、最大电流效率、最大EQE分别为54 500 cd/m
2
、13.1 cd/A和16.6%.结果表明
微腔器件的发光性能与无腔器件相比得到了较大幅度的提升.
Red phosphorescent microcavity organic light-emitting device (MOLED) with structure of Glass/DBR/ITO/MoO
3
(1 nm)/TcTa(55 nm)/CBP:Ir(piq)
2
acac(44 nm
6%)/TPBI(55 nm)/LiF(1 nm)/Al(80 nm) was fabricated. For comparison
an OLED without cavity also was fabricated. The effect of microcavity structure on luminescent properties of phosphorescent devices was studied. The electroluminescence (EL) spectrum peak of OLED is at 626 nm
and the full width at half maximum (FWHM) is 92 nm. The electroluminescence (EL) spectrum peak of MOLED is at 628 nm
and the FWHM is 42 nm which is narrowed half compared with the 92 nm value. The micro cavity structure can narrow the luminescence spectrum of OLED and improve the colour purity. For MOLED
the maximum brightness
the maximum current efficiency
the maximum external quantum efficiency (EQE) are 121 000 cd/m
2
27.8 cd/A and 28.4%
respectively. For OLED
its maximum brightness
current efficiency and external quantum efficiency are 54 500 cd/m
2
13.1 cd/A and 16.6%
respectively. Comparing with the no cavity device
the luminescence properties of microcavity device have been improved greatly.
有机电致发光器件磷光微腔
organic light-emitting device(OLED)phosphorescentmicrocavity
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