A heat-controlled double-band electrochromic mirror system for next-generation smart windows
발표자
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초록
내용
Effective thermal management of buildings is crucial for reducing energy consumption in the current energy crisis. In this study, we propose dual-band reversible electrochromic mirrors (RECMs) and demonstrate ‘real smart’ windows capable of actively controlling both visible and near-infrared regimes. Silver (Ag) and viologens are used as cathodic redox materials, and Prussian blue serves as anodic counter species to balance redox stoichiometry. As the applied voltage increases, the viologens are firstly colored from the initial transparent state to blue, followed by the formation of an Ag mirror through the reduction of Ag+ ions at higher voltages. These processes result in simultaneous coloration and mirror formation, which allows the device to effectively block a broad wavelength range from visible to NIR with high transmittance contrast.