Abstract The based on WO 3 electrochromic devices (ECDs) is developing, but it remains a challenge to design all‐solid‐state ECDs that cover the VIS–IR spectrum with high stability, fast switching rate, and a wide tunable emissivity range. It is important to design ECD that synergistically modulates the smart thermodynamic cover in a wide spectral range. Here, the bilateral modulation process provides a new strategy for the design and fabrication of VIS–IR ECDs. The bilateral modulation of all‐solid‐state ECD with an ITO/Ti‐doped ITO/LiNbO 3 /NiO x /ITO‐glass structure that has a low energy consumption (± 1.5 V) is reported. Its modulation is based on the localized surface plasmon resonance (LSPR) and the traditional electrochromic processes. IR is regulated on the Ti‐doped ITO, VIS is regulated on the NiO x . The Δ ε of the ECD in the range of 1.25–2.5, 3–5, 8–14, 2.5–25, 14–25, and 1.25–28.6 µm are 0.50, 0.51, 0.48, 0.35, 0.33, and 0.32, respectively, and Δ T is 18.9% at 489 nm. It has a fast switching time of 0.5 and 2.7 s, and a cycling life of 10 4 cycles in IR. It also highlights the potential of combining two modulation principles in one ECD to achieve dual‐band modulation of VIS–IR under the same processing voltage.
Yang et al. (Thu,) studied this question.