EL Properties of New Blue Organic Light-Emitting-Diode with a Distyryltriphenylamine Derivative

Autor:	Kaname Imaizumi, Tatsuo Mori, Teruyoshi Mizutani
Rok vydání:	1998
Předmět:	Materials science business.industry Mechanical Engineering Quinoline Oxadiazole Cathode law.invention Threshold voltage chemistry.chemical_compound chemistry law OLED Optoelectronics Electrical and Electronic Engineering Thin film business Layer (electronics) Current density
Zdroj:	IEEJ Transactions on Sensors and Micromachines. 118:229-234
ISSN:	1347-5525 1341-8939
Popis:	The authors investigated the EL properties of the organic light-emitting-diode (OLED) with a distyryltriphenylamine derivative (MDTPA). Although, PL and EL of MDTPA thin film was in blue region, the EL of indium-tin-oxide (ITO)/MDTPA/aluminum quinoline (Alq3)/Al was due to the emission from Alq3, but not the emission from MDTPA. It can be explained by that the emitting region is formed in Alq3 layer since MDTPA has excellent hole transportation. The authors introduced an oxadiazole dimer as carrier blocking layer between MDTPA and Alq3 layers in order to form the emitting region in MDTPA layer. This OLED was found to have a high performance for a blue-light-emitting EL device. Its luminance was over 3000cdm-2 at the current density of 100mAcm-2. The EL threshold voltage was about 5 V. Using AILi alloy as the cathode instead of Al, the OLED had higher performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e86dcfbebf21f7f55acb400ee3841642 https://doi.org/10.1541/ieejsmas.118.229 Zobrazit plný text záznamu