Polyelectrolytes: Multi-Charged Conjugated Polyelectrolytes as a Versatile Work Function Modifier for Organic Electronic Devices (Adv. Funct. Mater. 8/2014)

Authors

  • Byoung Hoon Lee,

    1. School of Materials Science and Engineering, Heeger Center for Advanced Materials, Research Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, Gwangju, Korea
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  • In Hwan Jung,

    1. Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, Korea
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  • Han Young Woo,

    Corresponding author
    1. Department of Cogno-Mechatronics Engineering (WCU), Pusan National University, Miryang, Korea
    • School of Materials Science and Engineering, Heeger Center for Advanced Materials, Research Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, Gwangju 500–712 Korea

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  • Hong-Ku Shim,

    1. Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, Korea
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  • Geunjin Kim,

    1. School of Materials Science and Engineering, Heeger Center for Advanced Materials, Research Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, Gwangju, Korea
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  • Kwanghee Lee

    Corresponding author
    1. School of Materials Science and Engineering, Heeger Center for Advanced Materials, Research Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, Gwangju, Korea
    • School of Materials Science and Engineering, Heeger Center for Advanced Materials, Research Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, Gwangju 500–712 Korea

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Abstract

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H. Y. Woo and co-workers describe an energy level tuning mechanism at the interface between a metal electrode and a conjugated polyelectrolyte. On page 1100, by introducing a series of cationic conjugated polyelectrolytes, the effect of ion density on the energy level tuning process at such an interface in the organic electronic devices is investigated. These series materials indicate that two different electron injection mechanisms must be invoked according to the film thickness of the interfacial layer.

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