VO2 Tungsten Doped Film IR Perfect Absorber
- Autori: Larciprete, Maria Cristina; Ceneda, Daniele; Scirè, Daniele; Mosca, Mauro; Adorno, Dominique Persano; Dereshgi, Sina Abedini; Aydin, Koray; Macaluso, Roberto; Voti, Roberto Li; Sibilia, Concita; Cesca, Tiziana; Mattei, Giovanni; Centini, Marco
- Anno di pubblicazione: 2023
- Tipologia: Abstract in atti di convegno pubblicato in rivista
- OA Link: http://hdl.handle.net/10447/615273
Abstract
We investigated infrared reflectivity of undoped and Tungsten (W) doped Vanadium dioxide (VO2) films at varying temperatures. Undoped VO2 exhibited a clear phase transition at 100°C, achieving near 0% reflectivity, or perfect light absorption. As W doping concentration increased, the phase-transition temperature decreased, maintaining the zero-reflectivity condition. Only a 0.75% W doping enabled room temperature perfect absorption without heating the film.