Organic Light-Emitting Diodes with Magnesium Doped CuPc as an Efficient Electron Injection Layer

Chin. Phys. Lett.

2008, Vol. 25

Issue (2): 719-721 DOI:

Original Articles

Organic Light-Emitting Diodes with Magnesium Doped CuPc as an Efficient Electron Injection Layer

CAO Jun-Song¹;GUAN Min¹;CAO Guo-Hua¹;ZENG Yi-Ping¹;LI Jin-Min¹;QIN Da-Shan²

¹Novel Materials Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083²Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130

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CAO Jun-Song, GUAN Min, CAO Guo-Hua et al 2008 Chin. Phys. Lett. 25 719-721

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Abstract Bright organic electroluminescent devices are developed using a metal-doped organic layer intervening between the cathode and the emitting layer. The typical device structure is a glass substrate/indium-tin oxide (ITO)/copper
phthalocyanine (CuPc)/N,N'-bis-(1-naphthl)-diphenyl-1,1'-biphenyl-4,4'-diamine (NPB)/Tris(8-quinolinolato) alu\-minum(Alq₃)/Mg-doped CuPc/Ag. At a driving voltage of 11V, the device with a layer of Mg-doped CuPc (1:2 in weight) shows a brightness of 4312cd/m² and a current efficiency of 2.52cd/A, while the reference device exhibits 514cd/m² and 1.25cd/A.

Keywords: 78.60.Fi 85.60.Jb

Received: 07 December 2007 Published: 30 January 2008

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/Y2008/V25/I2/0719

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

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