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Proceedings Paper

Organic light-emitting diodes based on bipolar material FLAMB-1T
Author(s): Lu Li; Junsheng Yu; Zhu Ma; Yadong Jiang
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Paper Abstract

Organic light-emitting diodes (OLEDs) were fabricated with a structure of indium-tin-oxide (ITO)/poly(Nvinylcarbazole) (PVK): 2-{4-[bis(9,9-dimethylfluorenyl)amino]phenyl}-5-(dimesitylboryl)thiophene (FLAMB-1T)/[tris (8-quinolinolato) aluminum (Alq3) or 2,2',2"(1,3,5-benzenetriyl) tris-(1- phenyl-1Hbenzimidazole) (TPBi)]/Mg : Ag by spin coating method using a bipolar material of FLAMB-1T. Electroluminescent (EL) spectra characteristic was investigated, and the performance differences of the OLEDs were analyzed. Also, the luminance-voltage characteristics of the two devices were compared. The luminances of the devices were 2085 and 4389 cd/m2 at 15.5 V. The maximum power efficiencies of the devices were 0.24 and 4.9 lm/W. The EL spectra were located at 520 and 478 nm with the electron transporting layer of Alq3 and TPBi, respectively. The emitting processes of the device were discussed using energy transfer and direct carrier trapping principle in polymeric material.

Paper Details

Date Published: 22 October 2010
PDF: 5 pages
Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 765851 (22 October 2010); doi: 10.1117/12.865468
Show Author Affiliations
Lu Li, Univ. of Electronic Science and Technology of China (China)
Junsheng Yu, Univ. of Electronic Science and Technology of China (China)
Zhu Ma, Univ. of Electronic Science and Technology of China (China)
Yadong Jiang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7658:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology
Yadong Jiang; Bernard Kippelen; Junsheng Yu, Editor(s)

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