Jump to main content
Jump to site search


Ti-Doped WO3 synthesized by a facile wet bath method for improved electrochromism

Author affiliations

Abstract

Electrochromic materials could modulate the optical transmittance reversibly by the application of electric potential and the increase in the surface area for fast ionic diffusion is an efficient way to improve their electrochromism. In this work, WO3 based nanomaterials with a size as small as 5 nm were synthesized via a facile wet bath method that leads to Ti doping of WO3 based on the heterovalency of W(VI) and Ti(IV). Ti doping improved the WO3 electrochromism effectiveness in transmittance contrast and coloration efficiency due to the reduced crystallite size and therefore an increase in the surface area, the Ti doping also enhanced the cycling stability benefiting from the stable Ti–O bonding. However, the coloring/bleaching kinetics were deteriorated due to the reduced proton diffusion coefficient after the Ti ion substitution into the WO3 lattice. A high coloration efficiency of 106.6 cm2 C−1 and a good optical contrast of ∼67.6% can be obtained for the optimized Ti-doped WO3 at a wavelength of 633 nm.

Graphical abstract: Ti-Doped WO3 synthesized by a facile wet bath method for improved electrochromism

Back to tab navigation

Supplementary files

Publication details

The article was received on 03 Jun 2017, accepted on 01 Sep 2017 and first published on 04 Sep 2017


Article type: Paper
DOI: 10.1039/C7TC02456H
Citation: J. Mater. Chem. C, 2017, Advance Article
  •   Request permissions

    Ti-Doped WO3 synthesized by a facile wet bath method for improved electrochromism

    Y. Zhan, M. R. J. Tan, X. Cheng, W. M. A. Tan, G. F. Cai, J. W. Chen, V. Kumar, S. Magdassi and P. S. Lee, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC02456H

Search articles by author

Spotlight

Advertisements