Jpn. J. Appl. Phys. 41 (2002) pp. L70-L72 |Next Article| |Table of Contents|
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Novel Method for Polymer Thin Film Preparation: Spray Deposition of Highly Diluted Polymer Solutions
Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences, Kyushu University,
Kasuga, Fukuoka 816-8580, Japan
(Received September 25, 2001; accepted for publication November 22, 2001)
A spray deposition method is proposed as a novel way to prepare organic thin films. In this method, a highly diluted solution of a functional organic material, such as a π-conjugated polymer, is nebulized into air and concentrated under a controlled evaporation condition. The resulting aerosol is transported by a carrier gas and deposited onto a solid substrate. We successfully prepared a thin film of a poly-p-phenylenevinylene derivative from a highly diluted solution at the concentration of 10-4 wt% and fabricated an electroluminescent device exhibiting surface emission.
KEYWORDS:spray deposition, organic semiconductor, polymer thin film, organic light-emitting diode, π-conjugated polymer
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