Issue 35, 2023

A tunable color palette of electrochromic materials achieved through an ingenious stacking of ordinary conducting polymers

Abstract

Obtaining a wide color gamut and controllable color switching of electrochromic polymers (ECPs) is crucial for advanced applications. In this study, we present a multicolor palette of ECPs based on thin and transparent films of three ordinary conducting polymers: polythiophene (red), polyaniline (green), and poly(3,4-ethylenedioxythiophene) (blue). We utilized the liquid/liquid interfacial route to produce the polymer films and achieved different color tones by stacking them in varying combinations and/or numbers of layers. Thirteen distinct colors, covering the fully visible spectrum, were prepared, and their electrochromic properties were demonstrated. Fine-tuning of the colors is possible by carefully selecting the stacked samples and applying voltage. Finally, we create a rainbow-like, multicolored electrode to showcase the potential of this technique in producing multifunctional and spatially controlled electrodes for advanced electrochromic technologies.

Graphical abstract: A tunable color palette of electrochromic materials achieved through an ingenious stacking of ordinary conducting polymers

Supplementary files

Article information

Article type
Paper
Submitted
15 Cax 2023
Accepted
15 Leq 2023
First published
15 Leq 2023

J. Mater. Chem. A, 2023,11, 18853-18861

A tunable color palette of electrochromic materials achieved through an ingenious stacking of ordinary conducting polymers

V. H. R. Souza, A. Schmidt and A. J. G. Zarbin, J. Mater. Chem. A, 2023, 11, 18853 DOI: 10.1039/D3TA02860G

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