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Proceedings Paper

Alternating current organic electroluminescent devices with asymmetric structure
Author(s): Haishu Tan; Jianquan Yao
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Paper Abstract

Most ac polymer EL devices to date are based on symmetrical structure. Here novel alternating current EL devices with asymmetric structure are successfully fabricated by using a hole type polymer PDDOPV and an electron type polyer PPQ. We report that performance of polymer devices with heterojunction under ac operation is not so sensitive to thickness of the two polymer layers as udner dc operation. This new advantage of ac operation mode over dc operation mode means easy production and cheap production facility in large-scale production in the near future. DIfferent emission spectra are obtained when our ac devices are operated in ac mode, forward and reverse bias. Emission spectrum at reverse bias includes two parts; one is from PPDOPV, the other from PPQ.

Paper Details

Date Published: 17 September 2002
PDF: 4 pages
Proc. SPIE 4918, Materials, Devices, and Systems for Display and Lighting, (17 September 2002); doi: 10.1117/12.483050
Show Author Affiliations
Haishu Tan, Foshan Univ. (China) and Tianjin Univ. (China)
Jianquan Yao, Tianjin 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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