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Electrochromic Thin Film Fabricated Using a Water-Dispersible Ink of Prussian Blue Nanoparticles

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Published 15 February 2008 Copyright (c) 2008 The Japan Society of Applied Physics
, , Citation Hirofumi Shiozaki et al 2008 Jpn. J. Appl. Phys. 47 1242 DOI 10.1143/JJAP.47.1242

1347-4065/47/2S/1242

Abstract

We dispersed nanoparticles of Prussian blue (PB) in water using surface modification of the PB nanoparticles. Using spin-coating method, a thin film is easily fabricated with water dispersible ink of PB nanoparticles. The PB film thickness was estimated as 40–430 nm. The PB nanoparticle film on an indium tin oxide glass substrate showed a stable electrochromic response: the color changed repeatedly between blue and colorless without any post-treatment.

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10.1143/JJAP.47.1242