Reduction of Concentration Quenching in a Nondoped DCM Organic Light-Emitting Diode
LIU Zhen-Gang, CHEN Zhi-Jian, GONG Qi-Huang
Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871
Reduction of Concentration Quenching in a Nondoped DCM Organic Light-Emitting Diode
LIU Zhen-Gang;CHEN Zhi-Jian;GONG Qi-Huang
Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871
关键词 ：
85.60.Jb ,
85.60.Bt
Abstract ： We obtain a nondoped red organic light-emitting diode (OLED) structure ITO/pc-PPV (～30nm)DCM (～30nm) /BCP (～30nm)Mg:Ag, where DCM refers to 4-(dicyanomethylene)-2-methyl-6-[(4-dimethylaninostyryl)-4-H-pyran]. The OLED shows pure and stable red luminescence depending on the driving voltages. The maximum luminance is 330Cd/m2 and the turn-on voltage is as low as ～2V. The reason why the concentration quenching of DCM could be reduced in this structure is investigated. In the preparation process, both the hole-transporting layer and the emitter layer are formed by the spin-coated method. It is believed that this method can lead to a new way to avoid the concentration quenching of red-emitting materials.
Key words ：
85.60.Jb
85.60.Bt
出版日期: 2005-06-01
:
85.60.Jb
(Light-emitting devices)
85.60.Bt
(Optoelectronic device characterization, design, and modeling)
引用本文:
LIU Zhen-Gang;CHEN Zhi-Jian;GONG Qi-Huang. Reduction of Concentration Quenching in a Nondoped DCM Organic Light-Emitting Diode[J]. 中国物理快报, 2005, 22(6): 1536-1539.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I6/1536
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2005, Vol. 22 
