Dynamic tuning of optical absorbance and structural color of VO₂-based metasurface.

ABSTRACT: Vanadium dioxide (VO₂) 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 MoS₂/VO₂/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 insulati

SUBMITTER: Cheng T 

PROVIDER: S-EPMC11501274 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature