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Proceedings Paper

Blue light-emitting diodes from polymer blends
Author(s): Jingsong Huang; Haiyan An; Jingying Hou; Baijun Chen; Shiyong Liu; Haifeng Zhang; Wenjing Tian; Jiachong Shen
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Paper Abstract

Electroluminescence (EL) is reported from a novel polymer blend of poly(2,5-dibutoxyphenylene) (PPP) and polymer poly(N-vinylcarbazole) (PVK). Since PPP and PVK are soluble in common organic solvents, light-emitting diodes (LEDs) can be fabricated by spin-coating films of the polymer blends from solution without subsequent processing or heat treatment. Indium-tin-oxide (ITO) and aluminum (Al) are used as the hole-injection and electron-injection electrodes, respectively. Blue light emission is observed at about 8 V and have a peak emission wavelength at 448 nm at room temperature. The EL efficiency is about 0.82%, which is greater than.that of pure PPP by approximately one order of magnitude.

Paper Details

Date Published: 3 October 1996
PDF: 5 pages
Proc. SPIE 2897, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications, (3 October 1996); doi: 10.1117/12.252937
Show Author Affiliations
Jingsong Huang, Jilin Univ. (China)
Haiyan An, Jilin Univ. (China)
Jingying Hou, Jilin Univ. (China)
Baijun Chen, Jilin Univ. (China)
Shiyong Liu, Jilin Univ. (China)
Haifeng Zhang, Jilin Univ. (China)
Wenjing Tian, Jilin Univ. (China)
Jiachong Shen, Jilin Univ. (China)

Published in SPIE Proceedings Vol. 2897:
Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications
Manfred Eich; Bruce H. T. Chai; Minhua Jiang, Editor(s)

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