| 用BPhen作基质的铕配合物OLED发光机制研究 |
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| 引用本文： | 辛琦,李文连,李天乐,苏文明,孙小燕.用BPhen作基质的铕配合物OLED发光机制研究[J].光电子．激光,2008,19(1):10-13. |
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| 作者姓名： | 辛琦 李文连 李天乐 苏文明 孙小燕 |
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| 作者单位： | 1. 中国科学院长春光学精密机械与物理研究所激发态物理重点实验室,吉林,长春,130033;中国科学院研究生院,北京,100039
2. 中国科学院长春光学精密机械与物理研究所激发态物理重点实验室,吉林,长春,130033 |
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| 摘 要： | 用具有良好电子传输/空穴阻挡性能的BPhen(4,7-diphenyl-1,10-phenanthroline)作基质,Eu(DBM)3pyzphen(pyzphen=pyrazino-2,3-f]1,10]-phenanthroline,DBM=Dibenzoylmethane)作发射材料,成功制得了高效率、高亮度的有机电致发光器件OLED.器件的最大外量子效率为2.5%,最大电流效率为5.3 cd/A,最大亮度为1 320 cd/m2.在亮度为200和1 000 cd/m2时,器件的色坐标分别为(0.66,0.33)和(0.65,0.34).深入研究了该器件的发光机制,发现在电致发光(EL)过程中,载流子直接被Eu(DBM)3pyzphen陷获是主要的发光机制,同时在BPhen与Eu(DBM)3pyzphen间还存在着有效的能量传递.
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| 关 键 词： | 有机电致发光器件(OELD) 铕配合物 BPhen 机制 BPhen 基质 铕配合物 OLED 有机电致发光器件 机制研究 host devices organic electroluminescent mechanism 能量传递 存在 载流子 过程 发现 发光机制 色坐标 高亮度 电流效率 外量子效率 |
| 文章编号： | 1005-0086（2008）01-0010-04 |
| 收稿时间： | 2007-01-11 |
| 修稿时间： | 2007年1月11日 |
Emission mechanism in europium-complex organic electroluminescent devices using BPhen as host |
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| XIN Qi,LI Wen-lian,LI Tian-le,SU Wen-ming,SUN Xiao-yan.Emission mechanism in europium-complex organic electroluminescent devices using BPhen as host[J].Journal of Optoelectronics·laser,2008,19(1):10-13. |
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| Authors: | XIN Qi LI Wen-lian LI Tian-le SU Wen-ming SUN Xiao-yan |
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| Affiliation: | XIN Qi1,2,LI Wen-lian1,LI Tian-le1,SU Wen-ming1,SUN Xiao-yan1,2(1.Key Laboratory of Excited State Processes,Changchun Institute of Optics,Fine Mechanics , Physics,Chinese Academy of Sciences,Changchun 130033,China,2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | High efficiency pure red organic electroluminescent devices(OLED) were fabricated by doping Eu(DBM)3 pyzphen into electron transporting/hole blocking material Bphen as emission layer.A maximum current efficiency of 5.3 cd/A,an external quantum efficiency of 2.5% and a maximum luminance of 1 320 cd/m2 were obtained from the optimal device.The color coordinates were (0.66,0.33) and (0.65,0.34) at the brightness of 200 and 1 000 cd/m2,respectively.The emission mechanism in the device was investigated in detail... |
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| Keywords: | organic electroluminescent device(OLED) europium complex BPhen emission mechanism |
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