To increase the switching stability of switchable mirrors based on Mg–Ni alloy thin films, we inserted a thin Ti buffer layer between a Mg–Ni alloy thin film and a Pd top layer, which were prepared by DC magnetron sputtering. The optical properties and switching durability of the Ti-inserted switchable mirrors were investigated by gasochromic switching. These samples showed no degradation up to 450 switching cycles and an improvement in their stability was apparent. Moreover, the responsivity in dehydrization was also improved by Ti insertion.
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Bao et al. (2006) studied this question.
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