Abstract
Abstract Prussian Blue and its Analogues (PBA) have achieved fruitful results in the field of electrochromic coloration, yet researchers are ceaselessly seeking extensions in their color-switching capabilities. Metal element modulation in PBA is considered a viable approach. High-entropy Prussian Blue Analogues (HPBA) contain multiple metal elements but lack relevant electrochromic studies. Therefore, this study focuses on HPBA containing Fe, Co, Ni, Mn, and V elements, revealing a yellow-brown color switch with significant modulation in the short-wave region (ΔTmax=48.3% at 294 nm). It also exhibits short response times (9 s/18 s) and good cycling stability (68% retention after 100 cycles). This study can serve as a valuable reference for researchers dedicated to the field of electrochromic coloration in PBA.
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