DOI: 10.18150/6tua8t
title: Data for the article entitled: "Enhancement of gasochromic response to hydrogen of WO3 thin films by post-process modification and catalyst selection"

description: Files include the data presented in the manuscript entitled: "Enhancement of gasochromic response to hydrogen of WO3 thin films by post-process modification and catalyst selection" by Mazur et al. (https://doi.org/10.1016/j.ijhydene.2024.07.112)Fig. 2 presents X-ray diffraction results of WO3 thin films, both as-deposited and annealed at different temperatures.Fig. 6 presents transmission spectra during exposure to hydrogen of WO3 thin films without catalyst: a) as-deposited and b-e) annealed at various temperatures. Measurements were done using experimental setup for gasochromic research, including, among others, Ocean Optics QE65000 spectrophotometer and DH-BAL 2000 light source.Fig. 7 presents Transmission spectra during exposure to hydrogen of thin Pd-WO3 film: a) as-deposited and b-e) annealed at various temperatures. Measurements were done using experimental setup for gasochromic research, including, among others, Ocean Optics QE65000 spectrophotometer and DH-BAL 2000 light source.Fig. 8 presents (a) normalized transmittance values and (b) gasochromic response at 900 nm during colouring/bleaching cycles of thin Pd-WO3 thin films. Measurements were done using experimental setup for gasochromic research, including, among others, Ocean Optics QE65000 spectrophotometer and DH-BAL 2000 light source. Data was calculated using OriginLab software.Fig. 9 presents (a) transmittance values, (b) gasochromic response, (c) response and (d) recovery times of WO3 thin films at 900 nm for different type and thickness of the catalyst. Measurements were done using experimental setup for gasochromic research, including, among others, Ocean Optics QE65000 spectrophotometer and DH-BAL 2000 light source. Data was calculated using OriginLab software.Fig. 10 presents stability of the response of WO3 thin films annealed at 673 K: (a) normalized transmittance values during exposure to 25 ppm hydrogen of thick Pd-WO3 film and (b) deviation from the arithmetic mean of the sensor response at 900 nm during colouring/bleaching cycles of WO3 thin films upon exposure to H2 concentration of 25 ppm. Measurements were done using experimental setup for gasochromic research, including, among others, Ocean Optics QE65000 spectrophotometer and DH-BAL 2000 light source. Data was calculated using OriginLab software.Fig. 11 presents (a) variation in transmittance and (b), (c), (d) hysteresis loop of the sensor response at 900 nm during colouring/bleaching cycles of WO3 thin films exposed to increasing concentration of H2 from 25 to 1000 ppm and decreasing back to 25 ppm for different catalyst types and thicknesses. Measurements were done using experimental setup for gasochromic research, including, among others, Ocean Optics QE65000 spectrophotometer and DH-BAL 2000 light source. Data was calculated using OriginLab software.Fig. 12 presents extinction coefficient spectra during colouring of WO3 films annealed at 673 K with different type and thickness of the catalyst. Data was calculated using SCOUT software.Fig. 13 presents charge carrier concentrations as a function of colouring time at H2 concentration of 25 ppm in the WO3 thin films annealed at 673 K determined using extinction coefficient data. Data was calculated using SCOUT software.