Electrochromic devices

Engineering

Fabrication

Materials science

Literature

Telecommunications

Electrochromism

Computer science

Antenna (radio)

Multi-band device

Physical chemistry

Alternative medicine

Physics

Nanotechnology

Optics

Near-infrared spectroscopy

Transmittance

Medicine

Chemistry

Electrode

Dual (grammatical number)

Optoelectronics

Pathology

Engineering physics

Advanced Functional Materials

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.

Recent Advances on Dual‐Band Electrochromic Materials and Devices