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Proceedings Paper

Organic blue-light-emitting diode with phenylbenzeneamine derivative
Author(s): Kaname Imaizumi; Tatsuo Mori; Teruyoshi Mizutani
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Paper Abstract

The authors investigated the electrical and optical properties of the organic light-emitting-diode (OLED) with a phenylbenzeneamine derivative (MDTPA). The PL and EL of MDTPA thin film were blue. However, the EL of the device of indium-tin-oxide (ITO)/MDTPA/aluminum quinoline (Alq3)/metal was not due to the emission from MDTPA, but was the emission from Alq3. It can be explained by that the emission region is formed in Alq3 layer since MDTPA has excellent hole transportation. The authors introduced an oxadiazole dimer (OXD) as a carrier blocking layer between MDTPA and Alq3 layers in order to from the emission region in MDTPA layer. This multi-layer OLED was found to have a high performance for a blue-light-emitting EL device. Its luminescence was over 3000 cd/m2 at the current density of 100 mA/cm2. The EL threshold voltage was about 5 V. Their EL efficiency was about 2 lm/W.

Paper Details

Date Published: 19 May 2000
PDF: 8 pages
Proc. SPIE 3939, Organic Photonic Materials and Devices II, (19 May 2000); doi: 10.1117/12.386374
Show Author Affiliations
Kaname Imaizumi, Nagoya Univ. (Japan)
Tatsuo Mori, Nagoya Univ. (Japan)
Teruyoshi Mizutani, Nagoya Univ. (Japan)

Published in SPIE Proceedings Vol. 3939:
Organic Photonic Materials and Devices II
Donal D. C. Bradley; Bernard Kippelen, Editor(s)

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