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Simple and Rapid Fabrication of Large-Scale Polymer-Immobilized Colloidal Crystals by Spray Coating

✍ Scribed by Masahiko Ishii; Takeshi Narita; Yuki Hayata; Akira Nishimura; Kazuyuki Tachi

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
459 KB
Volume
296
Category
Article
ISSN
1438-7492

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✦ Synopsis

Abstract

Polymer‐immobilized colloidal crystal films have been fabricated by conventional spray coating and UV curing of silica–acrylic monomer suspensions. Controlling both the viscosity of the suspensions and the wettability of substrates enabled colloidal crystal films with smooth surfaces and brilliant structural colors due to Bragg diffraction. The structural colors could be controlled by particle concentrations in addition to particle diameter. The wettability influenced the thickness of the coated film and it consequently affected the Bragg reflection intensity of the film. Silhouette figures were textured on a substrate having regions with different wettabilities by single spray coating. magnified image

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