Green fabrication of a complementary electrochromic device using water-based ink containing nanoparticles of WO3 and Prussian blue

Kazuki Tajima; Hiroshi Watanabe; Mizuka Nishino; Tohru Kawamoto

doi:10.1039/C9RA09153J

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Green fabrication of a complementary electrochromic device using water-based ink containing nanoparticles of WO₃ and Prussian blue†

Kazuki Tajima,

*^a Hiroshi Watanabe,^a Mizuka Nishino^a and Tohru Kawamoto

*^a

Author affiliations

* Corresponding authors

^a Nanomaterial Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8565, Japan
E-mail: k-tajima@aist.go.jp, tohru.kawamoto@aist.go.jp

Abstract

We fabricated a complementary electrochromic device (ECD) by using water-dispersible nanoparticles (NP) of Prussian blue (PB) and WO₃ by using a wet process, which involved just coating. Although the ECD had a thick WO₃ film, it showed much higher contrast compared to other techniques. In addition, the ECD also showed fast optical switching speed and high durability over 100 cycles because of wettability control of NP inks.

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Article information

DOI: https://doi.org/10.1039/C9RA09153J
Article type: Paper
Submitted: 05 Nov 2019
Accepted: 09 Jan 2020
First published: 14 Jan 2020
This article is Open Access

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RSC Adv., 2020,10, 2562-2565

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Green fabrication of a complementary electrochromic device using water-based ink containing nanoparticles of WO₃ and Prussian blue

K. Tajima, H. Watanabe, M. Nishino and T. Kawamoto, RSC Adv., 2020, 10, 2562 DOI: 10.1039/C9RA09153J

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