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Proceedings Paper

Narrow emission from polyimide light-emitting diodes
Author(s): Jianpu Wang; Xu Liu; Hui Ye; Shengang Xu; Yong Zhu; Mujie Yang
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Paper Abstract

Novel organic light-emitting diodes (OLEDs) using polymidy, fluorene-based cardo perylere polyimide (PFB5) were fabricated. EL properties of single-layer light-emitting diodes (LED) of indium-tin-oxide (ITO)/PFB5+/Al and ITO/PFB5+PBD/Al and multi-layer devices of ITO/PFB5/PBD/Al,ITO/PFB5/Alq/Al were characterized. In the pure PFB5 single layer device, the EL spectrum has a broad band and the peak wavelenght at 420nm, 450nm, and 545nm respectively. However, the EL emission fromthe single layer deviec of PFB5 blend PBD or multi-layer devices has the greatly narrow band and the peak wavelength at 545nm. Furthermore, the EL efficiency is improved significantly in these EL devices.

Paper Details

Date Published: 17 September 2002
PDF: 5 pages
Proc. SPIE 4918, Materials, Devices, and Systems for Display and Lighting, (17 September 2002); doi: 10.1117/12.483040
Show Author Affiliations
Jianpu Wang, Zhejiang Univ. (China)
Xu Liu, Zhejiang Univ. (China)
Hui Ye, Zhejiang Univ. (China)
Shengang Xu, Zhejiang Univ. (China)
Yong Zhu, Zhejiang Univ. (China)
Mujie Yang, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 4918:
Materials, Devices, and Systems for Display and Lighting
Fuxi Gan; Ming Hsien Wu; Lionel C. Kimerling, Editor(s)

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