Electrochromic devices using Fe(II)-based metallo-supramolecular polymer: Introduction of ionic liquid as electrolyte to enhance the thermal stability

Sanjoy Mondal, Takefumi Yoshida, Masayoshi Higuchi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We fabricated electrochromic (EC) devices with Fe(II)-based metallo-supramolecular polymer (polyFe), 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethanesulfonyl)imide (BMPyr(NTf)2) ionic liquid (IL), and Prussian blue (PB) as electrochromic layer, electrolyte layer, and counter layer, respectively. Thermal stability and ionic conductivity of BMPyr(NTf)2 IL was measured by thermogravimetric analysis (TGA) and impedance analysis to be 380°C and approximately 7.8 × 10−4 S/cm, respectively. The fabricated device showed reversible electrochromism between bluish-violet and colorless by applying +3.0/−1.5 V alternately. The 65% of the original EC contrast remained in the device after the repeated changes for 100 cycles at 100°C.

Original languageEnglish
Pages (from-to)661-666
Number of pages6
JournalJournal of the Society for Information Display
Volume27
Issue number11
DOIs
Publication statusPublished - 2019 Nov 1

Keywords

  • device
  • electrochromism
  • ionic liquid
  • polyFe
  • thermal stability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Electrochromic devices using Fe(II)-based metallo-supramolecular polymer: Introduction of ionic liquid as electrolyte to enhance the thermal stability'. Together they form a unique fingerprint.

  • Cite this