Flexible Substrates with Polyimide Buffer Layers for Organic Light-Emitting Diodes

Chin. Phys. Lett.

2004, Vol. 21

Issue (4): 744-746 DOI:

Original Articles

Flexible Substrates with Polyimide Buffer Layers for Organic Light-Emitting Diodes

CHANG Chun;WANG Li-Duo;LI Yang;DUAN Lian;QIU Yong

Key Lab of Organic Optoelectronics & Molecular Engineering (Ministry of Education), Tsinghua University, Beijing 100084 Department of Chemistry, Tsinghua University, Beijing 100084

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CHANG Chun, WANG Li-Duo, LI Yang et al 2004 Chin. Phys. Lett. 21 744-746

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Abstract We report a new method to enhance the properties of the polyethyleneterephthalate (PET) substrates for flexible organic light-emitting diodes (OLEDs). By spin-coating a polyimide (PI) film between the PET and the indium-tin-oxide anode, the flexible substrate with a smooth surface, high transmission over the visible spectrum and good adhesion are achieved. We also compare the flexible OLEDs on different substrates. The diodes on the substrates with polyimide buffer layers exhibit a brightness of 7280 cd/m² at 15 V and the maximum efficiency of 2.64 cd/A.

Keywords: 78.60.Fi 78.20.-e

Published: 01 April 2004

PACS:	78.60.Fi	(Electroluminescence)
	78.20.-e	(Optical properties of bulk materials and thin films)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I4/0744

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	CHANG Chun
	WANG Li-Duo
	LI Yang
	DUAN Lian
	QIU Yong

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