Abstract
Abstract High-performance electrochromic (EC) materials based on earth-abundant materials for EC window applications are crucial for energy conservation. We report a simple and feasible approach for fabricating an iron oxyhydroxide (FeOOH) hierarchical hollow sphere array via templating-assisted electrodeposition. We further examine the corresponding EC characteristics of this hierarchical hollow sphere array. A significant improvement in the switching kinetics and coloration efficiency of the hierarchical hollow sphere arrays is demonstrated, facilitating their promising applications as nanostructured EC materials in EC windows and other diverse electronic and optical nanodevices.
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