Volume 2, Issue 1

Original research papers

Environmental Chemistry


Julijana Velevska, Nace Stojanov, Margareta Pecovska - Gjorgjevich, Metodija Najdoski

Pages: 35-40

DOI: 10.21175/RadJ.2017.01.008

Received: 24 FEB 2016, Received revised: 19 APR 2016, Accepted: 25 APR 2016, Published online: 20 APR 2017

In this work, electrochromic Prussian blue (PB) and tungsten oxide (WO3) thin films have been prepared by the chemical bath deposition method. The films have been deposited onto fluorine doped tin oxide (FTO) coated glass substrates. Electrochromic behavior of each film was studied by cyclic voltammetry. An electrochromic test device (ECTD) was constructed by using WO3 as a working electrode, together with a PB film as an opposite (counter) electrode, and aqueous solution of 1 mol/dm3 KCl, slightly acidified with 2 drops of conc. HCl in 100 ml, as an electrolyte. The optical transmission spectra of the bleached and colored states were recorded in the visible part of the spectrum. The contrast ratio was calculated from these spectra. The coloration efficiency and the time response of the ECTD were also examined.
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