Organic Light Emitting Diodes with an Organic Acceptor/Donor Interface Involved in Hole Injection

Chin. Phys. Lett.

2007, Vol. 24

Issue (5): 1380-1382 DOI:

Original Articles

Organic Light Emitting Diodes with an Organic Acceptor/Donor Interface Involved in Hole Injection

CAO Guo-Hua;QIN Da-Shan;GUAN Min;CAO Jun-Song;ZENG Yi-Ping;LI
Jin-Min

Novel Materials Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083

Cite this article:

CAO Guo-Hua, QIN Da-Shan, GUAN Min et al 2007 Chin. Phys. Lett. 24 1380-1382

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Abstract Organic light emitting diodes with an interface of organic acceptor 3-, 4-, 9-, 10-perylenetetracarboxylic dianhydride (PTCDA) and donor copper phthalocyanine (CuPc) involved in hole injection are fabricated. As compared to the conventional device using a 5nm CuPc hole injection layer, the device using an interface of 10nm PTCDA and 5nm CuPc layers shows much lower operating voltage with an increase of about 46% in the maximum power efficiency. The enhanced device performance is attributed to the efficient hole generation at the PTCDA/CuPc interface. This study provides a new way of designing hole injection.

Keywords: 78.60.Fi 85.60.Jb

Received: 19 December 2006 Published: 23 April 2007

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

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2007/V24/I5/01380

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	CAO Guo-Hua
	QIN Da-Shan
	GUAN Min
	CAO Jun-Song
	ZENG Yi-Ping
	LIJin-Min

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