Five-layered symmetrically configured ac light-emitting (SCALE) devices and their three-layered variations: use of gold as an electron and hole injection electrode

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

doi:10.1117/12.219560

15 September 1995 Five-layered symmetrically configured ac light-emitting (SCALE) devices and their three-layered variations: use of gold as an electron and hole injection electrode

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

Author Affiliations +

Proceedings Volume 2528, Optical and Photonic Applications of Electroactive and Conducting Polymers; (1995) https://doi.org/10.1117/12.219560
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

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.

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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, and Arthur J. Epstein "Five-layered symmetrically configured ac light-emitting (SCALE) devices and their three-layered variations: use of gold as an electron and hole injection electrode", Proc. SPIE 2528, Optical and Photonic Applications of Electroactive and Conducting Polymers, (15 September 1995); https://doi.org/10.1117/12.219560

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