Related Experiment Video
Updated: Sep 23, 2025

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
Published on: February 27, 2019
One million cyclable blue/colourless electrochromic device using K2Zn3[Fe(CN)6]2 nanoparticles synthesized with a
Akira Takahashi1, Keiko Noda1, Hiroshi Watanabe1
1Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan tohru.kawamoto@aist.go.jp akira-takahashi@aist.go.jp.
Abstract:
Well-defined K2Zn3[Fe(CN)6]2-nanoparticles (NPs) synthesized with a micromixer showed robust redox reaction cyclability. Crystal structure analysis revealed that the robustness results from the maintenance of the original rhombohedral crystal structure in the oxidation state. The blue/colourless electrochromic device with the K2Zn3[Fe(CN)6]2-NPs and Prussian blue NPs showed recyclability over 1 million redox reactions.

