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physics.app-ph2020★ 7 cited
Charge coloration dynamics of electrochromic amorphous tungsten oxide studied by simultaneous electrochemical and color impedance measurements
Edgar A. Rojas-González, Gunnar A. Niklasson
The coloration mechanisms in electrochromic (EC) systems can be probed by comparing the dynamics of the electrical and optical responses. In this paper, the linear frequency-depend…
physics.app-ph2020★ 10 cited
Differential coloration efficiency of electrochromic amorphous tungsten oxide as a function of intercalation level: Comparison between theory and experiment
Edgar A. Rojas-González, Gunnar A. Niklasson
Optical absorption in amorphous tungsten oxide (), for photon energies below that of the band gap, can be rationalized in terms of electronic transitions…
physics.app-ph2019★ 9 cited
Setup for simultaneous electrochemical and color impedance measurements of electrochromic films: theory, assessment, and test measurement
Edgar A. Rojas-González, Gunnar A. Niklasson
Combined frequency-resolved techniques are suitable to study electrochromic (EC) materials. We present an experimental setup for simultaneous electrochemical and color impedance st…