Recent Advances on Dual-Band Electrochromic Materials and Devices

作者：Zhai, Yanling; Li, Jiahui; Shen, Sophia; Zhu, Zhijun^*; Mao, Sui; Xiao, Xiao; Zhu, Chengzhou; Tang, Jianguo; Lu, Xiaoquan^*; Chen, Jun^*

来源：Advanced Functional Materials, 2022, 32(17): 2109848.

DOI：10.1002/adfm.202109848

• electrochromic devices
• energy-saving
• independent regulation
• near-infrared
• smart windows
• visible light

Dual-band electrochromism is a phenomenon where materials can independently regulate the transmittance of visible (VIS) and near-infrared (NIR) light. Owing to their bistability, low energy consumption, and independent control over VIS and NIR regions, dual-band electrochromic (EC) devices have been of great significance to fully harnessing VIS and NIR light and building an energy-saving society. The past several years have witnessed the efforts put in developing novel EC materials to improve their dual-band optical performance through altering their composition, structural, and physicochemical features, which determine the optical behavior of dual-band EC devices. In this review, the concept, significance, working principle, and key influence factors of dual-band electrochromism are briefly introduced. Next, the up-to-date progress of dual-band EC materials including inorganic, organic, and composites materials are summarized, with a focus on material design, device fabrication, and performance optimization. Finally, the challenges and perspectives of dual-band EC materials and devices are also presented.

• 单位
  青岛大学