Advanced Materials

Thin-Film Fabrication Method for Organic Light-Emitting Diodes Using Electrospray Deposition

Authors

  • Jungmyoung Ju,

    1. Department of Precision Engineering School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656 (Japan)
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  • Yutaka Yamagata,

    Corresponding author
    1. VCAD System Research Program RIKEN (The Institute of Physical and Chemical Research) 2-1 Hirosawa Wako-shi Saitama, 351-0198 (Japan)
    • VCAD System Research Program RIKEN (The Institute of Physical and Chemical Research) 2-1 Hirosawa Wako-shi Saitama, 351-0198 (Japan).
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  • Toshiro Higuchi

    1. Department of Precision Engineering School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656 (Japan)
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Abstract

A new method for fabricating micropatterns of MEH-PPV thin films with surface roughnesses below 1nm is proposed, using electrospray deposition and a dual-solvent technique. The basic concept is that nanoparticles are deposited on the target substrate just before they become completely dry, by adding a solvent that has an evaporation speed relatively lower than that of the original solution.

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