Blue-light-emitting organic electroluminescence via exciplex emission based on a fluorene derivative

被引：27
|
作者：
Li, FS [1 ]
Chen, ZJ
Wei, W
Cao, HY
Gong, QH
Teng, F
Qian, L
Wang, YM
机构：
[1] Peking Univ, Dept Phys, State Key Lab Artificial Microstruct & Mesoscop P, Beijing 100871, Peoples R China
[2] No Jiaotong Univ, Inst Optoelect Technol, Beijing 100044, Peoples R China
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2004年 / 37卷 / 12期
关键词：
D O I：
10.1088/0022-3727/37/12/004
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The synthesis of a high photoluminescence efficiency (88%, compared with tris(8-hydroxyquinoline)(Alq(3))) organic material 9,9-Dibutyl-N,N,N,N-tetraphenyl-9H-fluorene-2,7-diamine (DTFD) via Ullmann condensation was reported. Exiciplex emission of the ITO/DTFD/2.2-[1,2-phenylenebis(oxy)]bis(N,N-diphenylacetamide)/Alq(3)/LiF/Al device was observed and the peak wavelength of the emission was measured to be 480 nm, which belongs to the blue region. A turn-on voltage as low as 4 V and maximal brightness as large as 400 cd m(-2) were measured. The electroluminescence spectrum was observed to be blue-shifted with increase in applied voltage.
引用
收藏
页码：1613 / 1616
页数：4
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