Alternating current organic electroluminescent devices with asymmetric structure

Haishu Tan; Jianquan Yao

doi:10.1117/12.483050

17 September 2002 Alternating current organic electroluminescent devices with asymmetric structure

Haishu Tan, Jianquan Yao

Proceedings Volume 4918, Materials, Devices, and Systems for Display and Lighting; (2002) https://doi.org/10.1117/12.483050
Event: Photonics Asia, 2002, Shanghai, China

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.

Citation Download Citation

Haishu Tan and Jianquan Yao "Alternating current organic electroluminescent devices with asymmetric structure", Proc. SPIE 4918, Materials, Devices, and Systems for Display and Lighting, (17 September 2002); https://doi.org/10.1117/12.483050

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