Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)

The Polymer Society of Korea (한국고분자학회)
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Synthesis and Characterization of Crosslinked Hole Transporting Polymers for Organic Light Emitting Diodes

  • Jang, Do-Young (Department of Chemistry, Seoul National University) ;
  • Lim, Youn-Hee (Department of Chemistry, Seoul National University) ;
  • Kim, Joo-Hyun (Division of Applied Chemical Engineering, Pukyong National University) ;
  • Kim, Jang-Joo (School of Materials Science and Engineering, Seoul National University) ;
  • Shin, Jung-Hyu (Department of Chemistry, Seoul National University) ;
  • Yoon, Do-Y. (Department of Chemistry, Seoul National University)
  • Published : 2006.10.13
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Abstract

Triphenylamine derivatives play important roles as hole transporting materials in organic light emitting devices. However, low molecular weight triphenylamine derivatives show low glass transition temperature and aggregation behavior, and the vapor deposition step of low molecular weight materials is incompatible with large area display fabrication. Conventional polymer PEDOT-PSS HTL has serious drawbacks such as the ITO anode corrosion, poor surface energy match with aromatic EMLs. To solve these problems, we introduced crosslinkable units to triphenylamine-based polymers to make insoluble HTL by thermal curing following spin-coating. Electrochemical and optical properties of the new hole transporting materials were investigated. In addition, the device characteristics obtained with new hole transporting polymers were investigated in details.

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