HASSAB, Sofiane; SHEN, D. Eric; ӦSTERHOLM, Anna; DA ROCHA, Mathias; SONG, Giljoo; ALESANCO, Yolanda; VIÑUALES, Ana; ROUGIER, Aline; REYNOLDS, John C.; PADILLA, Javier

doi:10.1016/j.solmat.2018.04.031

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HASSAB, Sofiane
Department of Applied Physics

SHEN, D. Eric
School of Chemistry and Biochemistry, School of Materials Science and Engineering

ӦSTERHOLM, Anna
School of Chemistry and Biochemistry, School of Materials Science and Engineering

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Solar Energy Materials and Solar Cells. 2018, vol. 185, p. 54-60

Elsevier

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The switching time is one of the key parameters used to assess the performance of an electrochromic material or device. In spite of its importance, there is currently no standard for how this parameter is defined, and as a result, it is difficult to compare switching time data between different research groups, and to quantify and assess reported improvements. We propose a standard method for reporting electrochromic switching times, based on straightforward experimental fittings resulting in an analytical expression that can directly correlate obtainable optical contrast values with their corresponding switching times. This analytical expression makes it possible to unambiguously define the performance of an electrochromic material or device using two parameters: a full-switch contrast and a time constant.< Leer menos

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Electrochromic switching time

Time constant

Coloration time

Bleaching time

Switching speed

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A new standard method to calculate electrochromic switching time

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