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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Effect of Palladium Overlayer on Samarium Hydride Thin Film Switchable Mirror: Electrochemical and Topographical Study
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Effect of Palladium Overlayer on Samarium Hydride Thin Film Switchable Mirror: Electrochemical and Topographical Study

机译：钯覆盖层对氢化mar薄膜可切换镜的影响：电化学和形貌研究

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Samarium films with a typical thickness of 55 nm deposited by vacuum evaporation and covered with Pd overlayers with thicknesses of 5, 8, 11, and 15 nm were loaded with hydrogen and deloaded in a 1 M KOH solution galvanostatically at room temperature. Our study showed that palladium overlayer thickness plays the most crucial role in observing the fast transition between an as-deposited metallic state and a semiconducting nearly samarium trihydride state as well as in obtaining a very high optical contrast. The desorption of hydrogen from palladium-capped SmH_(3-δ) films was studied by in situ transmission measurement during the electrochemical loading/unloading of hydrogen. It was shown that palladium cap layer thickness affects the deloading of hydrogen from the hydrided films. The effect of a palladium overlayer on the surface morphology of metallic and hydrogen-desorbed samarium films showed the sequence of nucleation and growth.
机译：通过真空蒸发沉积并用厚度分别为5、8、11和15 nm的Pd覆盖层覆盖的with膜，其典型厚度为55 nm，并在室温下将其加载到恒流恒压的1 M KOH溶液中，并用氢气覆盖。我们的研究表明，钯层的厚度在观察沉积态金属状态与半导体接近三氢化sa状态之间的快速过渡以及获得非常高的光学对比度方面起着至关重要的作用。通过氢的电化学加载/卸载过程中的原位透射测量研究了氢从钯封端的SmH_（3-δ）膜中的解吸。结果表明，钯盖层的厚度会影响氢从水合膜上的卸荷。钯覆盖层对金属和氢吸附sa膜表面形态的影响显示了成核和生长的顺序。

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