Multiheterodeposited film for full-color electrochromic device

2016 Fiscal Year Final Research Report

• Project/Area Number: 26620201
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Device related chemistry
• Research Institution: Yamagata University
• Principal Investigator: Matsui JUN 山形大学, 理学部, 准教授 (50361184)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: エレクトロクロミズム / 階層構造化 / 交互積層膜 / レドックス伝導

Outline of Final Research Achievements

Electrochromism is a process by which the color of a materials is changed through an electrochemical reaction. The ability to reversibly change the absorption of electrochromic materials has aroused interest for application in technologies such as smart windows, and electronic papers. In this study, a multicolor reversible electrochromism was achieved in a potential engineered film. Cationic polymer containing ruthenium complex p(CM/Ru) and anionic Prussian blue(PB) nanoparticles were assembled based on their redox potential using the Layer-by-Layer deposition technique. The copolymer p(CM/Ru) works as a mediator for PB oxidation. The mediation of p(CM/Ru) enables to produce PB and its oxidized form of Prussian yellow in the same time. Moreover, the mixed state was returned to the initial form using O2 as a reduction mediator.

Free Research Field

高分子機能材料