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Proceedings Paper

Five-layered symmetrically configured ac light-emitting (SCALE) devices and their three-layered variations: use of gold as an electron and hole injection electrode
Author(s): Yunzheng Wang; Darren D. Gebler; James W. Blatchford; Scott W. Jessen; L. B. Lin; Terry L. Gustafson; Hsing-Lin Wang; Y. W. Park; Timothy M. Swager; Alan G. MacDiarmid; Arthur J. Epstein
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Paper Abstract

Symmetrically configured ac light-emitting (SCALE) devices based on conjugated polymers utilizing indium-tin oxide (ITO) and aluminum as electrodes have been demonstrated recently. Here we report the fabrication of SCALE devices using a more stable high workfunction metal, such as gold, as a charge (both electron and hole) injection electrode. Also, a variation of such devices in which the electroluminescent polymer, instead of being separated from the insulating polymer, is dispersed in the insulating polymer to form a unified emitter-insulator is reported. These devices emit light in both forward and reverse dc bias with symmetric current- voltage characteristics. Under low frequency ac (sinusoidal) driving voltage, light pulses with double the driving frequency are observed. A model is proposed to account for the device operation.

Paper Details

Date Published: 15 September 1995
PDF: 8 pages
Proc. SPIE 2528, Optical and Photonic Applications of Electroactive and Conducting Polymers, (15 September 1995); doi: 10.1117/12.219560
Show Author Affiliations
Yunzheng Wang, The Ohio State Univ. (United States)
Darren D. Gebler, The Ohio State Univ. (United States)
James W. Blatchford, The Ohio State Univ. (United States)
Scott W. Jessen, The Ohio State Univ. (United States)
L. B. Lin, The Ohio State Univ. (United States)
Terry L. Gustafson, The Ohio State Univ. (United States)
Hsing-Lin Wang, Univ. of Pennsylvania (United States)
Y. W. Park, Univ. of Pennsylvania (United States)
Timothy M. Swager, Univ. of Pennsylvania (United States)
Alan G. MacDiarmid, Univ. of Pennsylvania (United States)
Arthur J. Epstein, The Ohio State Univ. (United States)


Published in SPIE Proceedings Vol. 2528:
Optical and Photonic Applications of Electroactive and Conducting Polymers
Sze Chang Yang; Prasanna Chandrasekhar, Editor(s)

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