Electrochromic Smart Windows with On‐Demand Photothermal Regulation for Energy‐Saving Buildings

Abstract Electrochromic smart windows with dynamic photothermal management can enhance living comfort and reduce building energy consumption. However, they usually suffer from low selectivity and optical modulation in visible (VIS) and near‐infrared (NIR) regions owing to the coupled mechanism restriction. Here, the reversible deposition and ion adsorption in WO 3 //MnO 2 ‐based smart windows are decoupled using a hybrid electrolyte, realizing their independent and efficient VIS–NIR regulation. The Cu 2+ /Mn 2+ ions in the hybrid electrolyte enhance proton adsorption on the WO 3 surface while impeding proton insertion, imparting state‐of‐the‐art NIR regulation to the WO 3 electrode. Moreover, the synergy of…

• NN
  National Natural Science Foundation of China

  Awards: 52302361, 62222402
• CP
  China Postdoctoral Science Foundation

  Award: 2022M711036
• NS
  Natural Science Foundation of Henan Province

  Awards: 232300421387, 242300421213