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Stable Junction Polymer Light-Emitting Electrochemical Cells

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Organic Nanophotonics

Part of the book series: Nano-Optics and Nanophotonics ((NON))

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Abstract

Polymer light-emitting electrochemical cells (PLECs) employ a thin layer of a luminescent conjugated polymer admixed with an ionic source and an ionic conductor for the in situ formation of a p-i-n junction to facilitate the injections of both electrons and holes. The junction formation enables the use of an air-stable conductor as the cathode and a relatively thick emissive polymer layer which is more compatible with low-cost, scalable coating processes. This chapter overviews the operation mechanism, as well as the recent progress in employing crosslinkable ionic conductors to stabilize the p-i-n junction in PLECs. The static junction results in electroluminescence at high brightness, high efficiency, and prolonged lifetime. Solution-processable and printable electrode materials, such as silver nanowire, carbon nanotube, graphene, and conducting polymer, can be used in PLECs, thus opening a way to fully printable and stretchable displays.

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Acknowledgments

The authors acknowledge the financial supports by the Air Force Office of Scientific Research (FA9550-12-1-0074) and National Science Foundation (ECCS-1028412).

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  1. Soft Materials Research Laboratory, Department of Materials Science and Engineering, Henry Samueli School of Engineering and Applied Science, University of California, Los Angeles, CA, 90095, USA

    Jiajie Liang, Zhibin Yu, Lu Li, Huier Gao & Qibing Pei

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  1. Institute of Chemistry, Chinese Academy of Sciences, Beijing, China

    Yong Sheng Zhao

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Liang, J., Yu, Z., Li, L., Gao, H., Pei, Q. (2015). Stable Junction Polymer Light-Emitting Electrochemical Cells. In: Zhao, Y. (eds) Organic Nanophotonics. Nano-Optics and Nanophotonics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-45082-6_4

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