Jump to main content
Jump to site search

Issue 43, 2016
Previous Article Next Article

Water processable Prussian blue–polyaniline:polystyrene sulfonate nanocomposite (PB–PANI:PSS) for multi-color electrochromic applications

Author affiliations

Abstract

A new nanocomposite, Prussian blue–polyaniline:polystyrene sulfonate (PB–PANI:PSS), has been synthesized by incorporating both polyaniline (PANI) and Prussian blue (PB) electrochromic materials. The PB–PANI:PSS nanocomposite is synthesized by two-step polymerization, and the nanocomposite thin film is prepared by a wet-coating method on the conductive ITO glass. The PB–PANI:PSS thin film shows three optical states: highly transparent in a reduced state (−0.5 V vs. Ag/AgCl), green color at +0.2 V contributed by PANI, and blue-green color at +0.5 V contributed by both PANI and PB. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) mapping images show that the PB pigments were well dispersed in the PANI:PSS matrix. FTIR spectra show the specific absorbance peaks of both PANI:PSS and PB in the nanocomposite film. Cyclic voltammetry (CV) analysis reveals two redox pairs from the PB–PANI:PSS thin film. The UV-Vis absorbance spectra show a broader absorbance range for the nanocomposite than for pure PANI and PB. An averaged transmittance (Tave) was established to evaluate this wide-range absorbance material. The ΔTave value was 52.3% when applying an operation voltage between −0.5 and +0.5 V, and the switching times were 8.1 and 13.3 s for bleaching and darkening, respectively. The coloration efficiency was calculated to be 76.6 cm2 C−1 at the averaged visible wavelength. This PB–PANI:PSS composite thin film could potentially be useful for multi-color electrochromic applications because the ease of processing using water may facilitate the preparation of large-area thin films.

Graphical abstract: Water processable Prussian blue–polyaniline:polystyrene sulfonate nanocomposite (PB–PANI:PSS) for multi-color electrochromic applications

Back to tab navigation

Supplementary files

Publication details

The article was received on 04 Aug 2016, accepted on 10 Oct 2016 and first published on 10 Oct 2016


Article type: Paper
DOI: 10.1039/C6TC03351B
Citation: J. Mater. Chem. C, 2016,4, 10293-10300
  •   Request permissions

    Water processable Prussian blue–polyaniline:polystyrene sulfonate nanocomposite (PB–PANI:PSS) for multi-color electrochromic applications

    C. Hu, T. Kawamoto, H. Tanaka, A. Takahashi, K. Lee, S. Kao, Y. Liao and K. Ho, J. Mater. Chem. C, 2016, 4, 10293
    DOI: 10.1039/C6TC03351B

Search articles by author

Spotlight

Advertisements