biostudies-literatureUnknown12(15)Cheng TVanadium dioxide (VO<sub>2</sub>) is an attractive thermal-control material exhibiting low thermal hysteresis and excellent temperature cycling performance. However, the deficiencies including weak spectral shift and narrow-band absorption during insulating-metallic transitions hinder its application in optoelectronics. The transition metal dichalcogenides (TMDs) can provide a promising solution with their high dielectric properties and robust optical coupling. Here, we report a MoS<sub>2</sub>/VO<sub>2</sub>/Au/Si metasurface and investigate the dynamic tunability of its optical absorbance and structural color upon heating via spectroscopic ellipsometry measurements and numerical simulations. The first-principles calculations reveal that the dielectric absorptions of metallic and insulatiNanophotonics (Berlin, Germany)3121-3133https://www.ebi.ac.uk/biostudies/studies/S-EPMC11501274biostudies-literatureDynamic tuning of optical absorbance and structural color of VO<sub>2</sub>-based metasurface.PMC11501274Yang JYCheng TLiu LFei TMa YZhao HfalseDynamic tuning of optical absorbance and structural color of VO<sub>2</sub>-based metasurface.Vanadium dioxide (VO<sub>2</sub>) is an attractive thermal-control material exhibiting low thermal hysteresis and excellent temperature cycling performance. However, the deficiencies including weak spectral shift and narrow-band absorption during insulating-metallic transitions hinder its application in optoelectronics. The transition metal dichalcogenides (TMDs) can provide a promising solution with their high dielectric properties and robust optical coupling. Here, we report a MoS<sub>2</sub>/VO<sub>2</sub>/Au/Si metasurface and investigate the dynamic tunability of its optical absorbance and structural color upon heating via spectroscopic ellipsometry measurements and numerical simulations. The first-principles calculations reveal that the dielectric absorptions of metallic and insulati2023-01-01T00:00:00Z2023 Jul2025-04-27T02:20:27.639Z2025-04-06T18:30:43.453ZS-EPMC115012743963505710.1515/nanoph-2023-0169