| 新型有机电致磷光白光器件的研究 |
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| 引用本文： | 王振,甘林,汪静静,柳菲,郑新.新型有机电致磷光白光器件的研究[J].发光学报,2016,37(6):731-736. |
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| 作者姓名： | 王振 甘林 汪静静 柳菲 郑新 |
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| 作者单位： | 重庆邮电大学 光电工程学院, 重庆 400065 |
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| 基金项目： | 重庆市教委科学技术研究项目(KJ1400411)，重庆邮电大学自然科学基金项目(A2013-39) |
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| 摘 要： | 制备了结构为ITO/NPB/TCTA/FIrpic∶TCTA/Ir(MDQ)2(acac)∶TmPyPB/FIrpic∶TmPyPB/TmPyPB/LiF/Al的有机电致磷光发光器件。通过在双蓝光发光层之间插入较薄的红光层Ir(MDQ)2(acac)∶TmPyPB调节载流子、激子在各发光层中的分布,并结合TCTA和TmPyPB对发光层内载流子和激子的有效阻挡作用,混合实现白光发射。研究了红光层在不同厚度、不同掺杂浓度下对器件发光性能的影响。结果表明,红光发光层厚度为2nm、质量浓度为5%时,结合蓝光发光层和红光发光层,实现了色坐标为(0.333,0.333)、最大发光效率为11.50cd/A的白光发射。
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| 关 键 词： | 有机电致发光二极管 新型 有机白光器件 磷光 |
| 收稿时间： | 2016-01-29 |
Studies on Novel White Phosphorescent Organic Light-emitting Devices |
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| WANG Zhen,GAN Lin,WANG Jing-jing,LIU Fei,ZHENG Xin.Studies on Novel White Phosphorescent Organic Light-emitting Devices[J].Chinese Journal of Luminescence,2016,37(6):731-736. |
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| Authors: | WANG Zhen GAN Lin WANG Jing-jing LIU Fei ZHENG Xin |
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| Institution: | College of Electronics Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China |
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| Abstract: | A novel white electrophosphorescent organic light emitting diodes ( PHOLEDs ) with a structure of ITO/NPB/TCTA/FIrpic∶TCTA/Ir ( MDQ ) 2 ( acac )∶TmPyPB/FIrpic∶TmPyPB/TmPy-PB/LiF/Al was demonstrated. The red emitting layer (Ir(MDQ)2(acac)∶TmPyPB) with different thickness and doping concentration was inserted between the double blue-emitting layers ( D-BEML) to adjust the distribution of carriers and excitons. The luminescent properties of the devices were studied. The results showed that the optimum performance of OLED was achieved when the thick-ness of Ir(MDQ)2(acac)∶TmPyPB red emitting layer is 2 nm, and the doping mass fraction is 5%. Combining the D-BEML and the red emitting layer, WOLEDs with peak efficiencies of 11. 50 cd/A and CIE coordinates of (0. 333, 0. 333) can be obtained. |
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| Keywords: | OLEDs novel white OLEDs phosphoresce |
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