High Brightness and Efficiency Yellow-Emitting Organic Electroluminescent Device

Chin. Phys. Lett.

1999, Vol. 16

Issue (3): 226-228 DOI:

Original Articles

High Brightness and Efficiency Yellow-Emitting Organic Electroluminescent Device

HUANG Jing-song;XIE Zhi-yuan;YANG Kai-xia;LI Chuan-nan,HOU Jing-ying;LIU Shi-yong

National Laboratory of Integrated Optoelectronics, Jilin University, Changchun 130023

Cite this article:

HUANG Jing-song, XIE Zhi-yuan, YANG Kai-xia et al 1999 Chin. Phys. Lett. 16 226-228

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Abstract Yellow-light-emitting organic electroluminescent device with multilayer thin-film structure, which shows high brightness and efficiency, is constructed. The hole-transport layer is an N,N'-bis(3-methyphenyl)-N,N'-diphenylbe-nzidine film. The electron-transport layer is an 8-(quinolinolate)-aluminum(A1q) film. The luminescent layer consists of a host material Alq and an emitting dopant 5,6,11,12-petraphenyInaphthacene. The doped device exhibited the maximum emission 40000cd/m² at 19V, and the maximum efficiency of 3.141m/W, which have been improved by about six and three times, respectively, in comparison with that in undoped device. For the unpackaged device, a luminance half-life on the order of about 230 h has been achieved with a constant current density of 15mA/cm², starting at 500cd/m² at the room temperature under ambient atmosphere.

Keywords: 85.60.Jb 78.60.Fi 85.60.-q

Published: 01 March 1999

PACS:	85.60.Jb	(Light-emitting devices)
	78.60.Fi	(Electroluminescence)
	85.60.-q	(Optoelectronic devices)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1999/V16/I3/0226

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	HUANG Jing-song
	XIE Zhi-yuan
	YANG Kai-xia
	LI Chuan-nan
	HOU Jing-ying
	LIU Shi-yong

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