Robust and stable dual-band electrochromic smart window with multicolor tunability

Abstract

Dual-band electrochromic smart windows (DESWs) can independently control the transmittance of near-infrared (NIR) and visible (VIS) light, which can significantly reduce building energy consumption. However, almost all the reported DESW...

The Progress and Outlook of Multivalent‐Ion‐Based Electrochromism

“…PANI can be converted to reduced leucoemeraldine base, semi‐oxidized emeraldine salt (ES), and fully oxidized pernigraniline salt (PS) under different applied potentials, modulating the VIS and NIR transmittance. [ 42 ] By assembling two layers of PANI/ITO electrodes, a Zn frame counter electrode in between and 1 m Zn(ClO 4 ) 2 /PC electrolyte, the resulting device offers three optical states: bright, cold, and dark. “Bright” refers to the higher transmittance of VIS and NIR, “dark” refers to the lower transmittance of both, while “cold” refers to the case when VIS transmittance is higher and NIR transmittance is lower.…”

“…[36] The electrochromism in Zn-ECD can be initiated by intercalation/deintercalation into/from the ECMs upon discharge/charge. Several inorganic and organic materials have been investigated for zinc-ion-based electrochromism, including TiO 2 , [37,38] WO 3 , [24] manganese oxide, [24] vanadium oxide, [39,40] Prussian blue (PB), [41] polyaniline (PANI), [33,42] etc.…”

Advances in multicolor electrochromic devices based on inorganic materials

“…24–30 Organic EC multicolor materials have been widely studied due to their rich color, fast response speed and easy processing during EC processes. 25,31–34 However, the cycling stability of most organic materials during the EC process often remains poor. In recent years, inorganic multicolor EC materials have made significant progress in the achievement of rich colors in EC processes either by using the intrinsic chemical color of materials or by constructing special architectures with structural color.…”

“…[24][25][26][27][28][29][30] Organic EC multicolor materials have been widely studied due to their rich color, fast response speed and easy processing during EC processes. 25,[31][32][33][34] However, the cycling stability of most organic materials during the EC process often remains poor.…”

Design Strategies for High Reflectivity Contrast and Stability Adaptive Camouflage Electrochromic Supercapacitors

“…Recent studies reveal conjugated polymers exhibits superior EC and energy storage performance (such as multiple color changes, fast switching time, low cost, and easy synthesis). , Extensive research has been conducted on a variety of conjugated polymers for adaptive camouflage purposes, such as polythiophenes, polypyrroles, polyanilines, and polycarbazoles . Among them, the polycarbazoles are more attractive for the following reasons: (1) easy to modify their structure; (2) easy to form relatively stable radical cations; and (3) easy access to yellow and green color.…”