Improving Stability of Organic Electroluminescent Diode by Inserting Copper Phthalocyanine Between the Anode and Hole Transport Layer

Chin. Phys. Lett.

1997, Vol. 14

Issue (4): 302-305 DOI:

Original Articles

Improving Stability of Organic Electroluminescent Diode by Inserting Copper Phthalocyanine Between the Anode and Hole Transport Layer

ZHANG Zhi-lin;JIANG Xue-yin;XU Shao-hong;T. Nagatomo¹;O. Omoto¹

Department of Materials Science, Shanghai University- Jiading Campus, Shanghai 201800 ¹Shibaura Institute of Technologx Shibaura 3-9-14 Minato-Ku, Tokyo 108, Japan

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ZHANG Zhi-lin, JIANG Xue-yin, XU Shao-hong et al 1997 Chin. Phys. Lett. 14 302-305

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Abstract Copper phthalocyanine(CuPc) thin film layer was inserted between the anode indium tin oxide and the hole transport layer TPD of an organic thin film electroluminescent device with a double-layered structure. It is found that the CuPc layer greatly improves the device stability. The durability of the device with CuPc layer increases about 8 times. The fact that at a constant current density the driving voltage remains unchanged with operation time for the device with CuPc layer means that the barriers of the carriers injection are stable due to the inserted CuPc layer.

Keywords: 78.60.Fi 78.66.Qn

Published: 01 April 1997

PACS:	78.60.Fi	(Electroluminescence)
	78.66.Qn	(Polymers; organic compounds)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1997/V14/I4/0302

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	ZHANG Zhi-lin
	JIANG Xue-yin
	XU Shao-hong
	T. Nagatomo
	O. Omoto

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