The chemical bath deposition method was employed for the preparation of iron hexacyanoferrate (FeHCF), cobalt hexacyanoferrate (CoHCF), and tungsten oxide (WO₃) films. The films were deposited onto fluorine-doped tin oxide (FTO) coated glass substrates. For practical electrochromic investigations, an electrochromic test device (ECTD) was constructed consisting of FeHCF (or CoHCF) films as the working electrode, together with WO₃ film as the counter electrode, in 1 M KCl aqueous solution as an electrolyte. Visible transmittance spectra were recorded in-situ. The output integral of the spectral intensity and the spectral modulation, as well as saved energy, were calculated by taking the solar irradiance spectrum AM 1.5 for a normal illumination on the ECTD and its transmittance data in the bleached and colored states.

1. J. M. Dussault, L. Gosselin, T. Galtsian Amundson, “Assesment of buildings energy efficiency with smart window glazing curtain walls,” in Proc. Smart materials, structures & NDT in aerospace conference (NDT Canada 2011), Montreal, Canada, 2011, pp 1 – 10.
   Retrieved from: http://www.ndt.net/article/ndtcanada2011/papers/12_Dussault_Rev2.pdf;
   Retrieved on: Aug. 27, 2018
2. A. S. Bahaj, P. A. B. James, M. F. Jentsch, “Potential of emerging glazing technologies for highly glazed buildings in hot arid climates,” Energ. Buildings, vol. 40, no. 5, pp. 720 – 731, 2008.
   DOI: 10.1016/j.enbuild.2007.05.006
3. J. Velevska, N. Stojanov, M. Pecovska - Gjorgjevich, M. Najdoski., “Visible light modulation using chemically deposited electrochromic thin films,” Radiation & Applications., vol. 2, no. 1, pp. 35 – 40, Apr. 2017.
   DOI: 10.21175/RadJ.2017.01.008
4. M. Casini, “Smart windows for energy efficiency of buildings,” in Proc. of 2^nd International Conference on Advances in Civil, Structural and Environmental Engineering (ACSEE 2014), Zurich, Switzerland, 2014, pp 273 – 281.
   Retrieved from: https://www.seekdl.org/assets/pdf/20141111_063159.pdf;
   Retrieved on: Aug. 27, 2018
5. W. S. E. Bahlol, “Smart glazing systems for low energy architecture,” in Proc. SB10: Sustainable Architecture and Urban Development (SAUD ‘10), Amman, Jordan, 2010, pp. 149 – 165.
   Retrieved from: https://www.irbnet.de/daten/iconda/CIB22604.pdf;
   Retrieved on: Aug. 27, 2018
6. R. Baetens, B. P. Jelle, A. Gustavsen, “Properties, requirements and possibilities of smart windows for dynamic daylight and solar energy control in buildings: a state-of-the-art review,” Sol. Energy Mater. Sol. Cells vol. 94, no. 2, pp 87 – 105, Feb. 2010.
   DOI: 10.1016/j.solmat.2009.08.021
7. M. Z. Sialvi et al., “Electrochromic and Colorimetric Properties of Nickel(II) Oxide Thin Films Prepared by Aerosol-Assisted Chemical Vapor Deposition,” ACS Appl. Mater. Interfaces, vol. 5 no. 12, pp. 5675 – 5682, Jun. 2013.
   DOI: 10.1021/am401025v
   PMid: 23748903
8. E. S. Lee, D. L. DiBartolomeo, S. E. Selkowitz, “Electrochromic windows for commercial buildings: monitored results from a full-scale testbed,” in Proc. Summer Study on Energy Efficiency in Buildings, Efficiency and Sustainability (ACEEE 2000), Washington (DC), USA, 2000.
   Retrieved from: https://aceee.org/files/proceedings/2000/data/papers/SS00_Panel3_Paper20.pdf;
   Retrieved on: Aug. 27, 2018
9. C. G. Granqvist, “Progress in electrochromics: tungsten oxide revisited,” Electrochim. Acta, vol. 44 no. 18, pp. 3005 – 3015, May 1999.
   DOI: 10.1016/S0013-4686(99)00016-X
10. M. Najdoski, T. Todorovski, “A simple method for chemical bath deposition of electrochromic tungsten oxide films,” Mater. Chem. Phys., vol. 104, no. 2-3, pp. 483 – 487, Aug. 2007.
    DOI: 10.1016/j.matchemphys.2007.04.035
11. S. Demiri, M. Najdoski, J. Velevska, “A simple chemical method for deposition of electrochromic prussian blue thin films,” Mater. Res. Bull., vol. 46, no. 12, pp 2484 – 2488, Dec. 2011.
    DOI: 10.1016/j.materresbull.2011.08.021
12. И. Алији, “Електрохромизам кај тенки филмови од кобалт хексацијаноферат,” презентирана на 2^ра Конференција на Докторската школа при Универзитетот “Св. Кирил и Методи”, Скопје, Македонија, 2018. (I. Aliji, “Electrochromism in cobalt hexacyanoferrate thin films,” presented at the 2^nd Doctorial school Conference of the “Sts Cyril and Methodius” University, Skopje, Macedonia, 2018.
13. Standard Tables for Reference Solar Irradiances: Direct Normal and Hemispherical on 37° Tilted Surface, ASTM G173-03, Jan. 11, 2012.
    Retrieved from: https://www.astm.org/Standards/G173.htm;
    Retrieved on: Aug. 27, 2018
14. M. Ristova, R. Neskovska, V. Mirčevski, “Chemically deposited electrochromic cuprous oxide films for solar light modulation,” Sol. Energy Mat & Sol. Cells, vol. 91, no. 14, pp 1361 – 11365, Sep. 2007.
    DOI: 10.1016/j.solmat.2007.05.018
15. H. Y. Liao, T. C. Liao, W. H. Chen, C. H. Chang, L. C. Chen, “Molybdate hexacyanoferrate (MoOHCF) thin film: Abrownishred Prussian blue analog for electrochromic window application,” Sol. Energy Mat & Sol. Cells, vol. 145, no. 1, pp 8 – 15, Feb. 2016.
    DOI: 10.1016/j.solmat.2015.06.062
16. J. Velevska, N. Stojanov, M. Pecovska - Gjorgjevich, M. Najdoski, “Electrochromism in rungsten oxide thin films prepared by chemical bath deposition,” J. Electrochem. Sci. Eng., vol. 7, no 1, pp, 27 – 37, 2017.
    DOI: 10.5599/jese.357
17. J. Velevska, M. Pecovska - Gjorgjevich, N. Stojanov, M. Najdoski, “Electrochromc properties of Prussian blue thin films prepared by chemical deposition method,” Int. J. Sci. Basic. Appl. Res., vol. 25, no. 3, pp. 380 – 392, 2016.
    Retrieved from: http://gssrr.org/index.php?journal=JournalOfBasicAndApplied&page=article&op=view &
    path%5B%5D=5335&path%5B%5D=2768;
    Retrieved on: Aug. 27, 2018
18. I. Aliji, M. Najdoski, J. Velevska, “A simple chemical method for deposition of electrochromic cobalt hexacyanoferrate thin films,” Int. J. Sci. Basic. Appl. Res., vol. 40, no. 1, pp. 242 – 257, 2018.
    Retrieved from: http://gssrr.org/index.php?journal=JournalOfBasicAndApplied&page=article&op=view&
    path%5B%5D=9084&path%5B%5D=4082;
    Retrieved on: Aug. 27, 2018
19. S. A. Sapp, G. A. Sotzing, J. R. Reynolds, “High contrast ratio and fast switching dual polymer electrochromic devices,” Chem. Mater., vol. 10, no. 8, pp. 2101 – 2108, Jul. 1998.
    DOI: 10.1021/cm9801237