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Thin-Films of Poly-Triarylamines for Electro-Optic Applications

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Summary

We observed that a new anionic triarylamine copolymer, which is easily accessable by radical polymerization can be used for the preparation of thin semiconducting organic films in two extremely different ways: One is the LBL assembly from solution with a cationic polyelectrolyte as counter system; the other is direct vacuum deposition, whereby the polymer degrades to oligomers, but keeps the functional groups intact as proved by UV/Vis, NMR spectroscopy and cyclic voltammetry. The fabricated films are used in light emitting devices as hole transporting layers showing excellent properties. External EL quantum efficiency (ηext) and luminous efficiency-current density (J) characteristics of PLED device were studied.

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Authors and Affiliations

  1. Institute of Organic Chemistry, University of Mainz, Duesbergweg 10–14, D-55099, Mainz, Germany

    Kyungsun Choi & Rudolf Zentel

  2. School of Electrical Engineering and Computer Science, Seoul National University, 151-744, Seoul, Korea

    Jeonghun Kwak & Changhee Lee

  3. Department of Chemical and Biological Engineering & NANO Systems Institute-National Core Research Center, Seoul National University, 151-744, Seoul, Korea

    Hosub Kim & Kookheon Char

  4. OptoElectronic materials research center, Korea Institute of Science and Technology, 130-650, Seoul, Korea

    Dong Young Kim

Authors
  1. Kyungsun Choi
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  2. Jeonghun Kwak
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  3. Changhee Lee
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  4. Hosub Kim
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  5. Kookheon Char
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  6. Dong Young Kim
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  7. Rudolf Zentel
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Correspondence to Rudolf Zentel.

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Choi, K., Kwak, J., Lee, C. et al. Thin-Films of Poly-Triarylamines for Electro-Optic Applications. Polym. Bull. 59, 795–803 (2008). https://doi.org/10.1007/s00289-007-0815-4

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  • DOI: https://doi.org/10.1007/s00289-007-0815-4

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