VO2 Tungsten Doped Film IR Perfect Absorber

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

doi:10.1051/epjconf/202328714009

EPJ Web of Conferences (Jan 2023)

VO2 Tungsten Doped Film IR Perfect Absorber

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

Affiliations

Larciprete Maria Cristina: Dipartimento di Scienze di Base ed Applicate per l’Ingegneria, Sapienza Università di Roma
Ceneda Daniele: Dipartimento di Scienze di Base ed Applicate per l’Ingegneria, Sapienza Università di Roma
Scirè Daniele: Department of Engineering, University of Palermo
Mosca Mauro: Department of Engineering, University of Palermo
Adorno Dominique Persano: Department of Physics and Chemistry "E. Segré", University of Palermo
Dereshgi Sina Abedini: Department of Electrical and Computer Engineering, Northwestern University
Aydin Koray: Department of Electrical and Computer Engineering, Northwestern University
Macaluso Roberto: Department of Engineering, University of Palermo
Voti Roberto Li: Dipartimento di Scienze di Base ed Applicate per l’Ingegneria, Sapienza Università di Roma
Sibilia Concita: Dipartimento di Scienze di Base ed Applicate per l’Ingegneria, Sapienza Università di Roma
Cesca Tiziana: Department of Physics and Astronomy, University of Padova
Mattei Giovanni: Department of Physics and Astronomy, University of Padova
Centini Marco: Dipartimento di Scienze di Base ed Applicate per l’Ingegneria, Sapienza Università di Roma

DOI: https://doi.org/10.1051/epjconf/202328714009
Journal volume & issue: Vol. 287
p. 14009

Abstract

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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.

Published in EPJ Web of Conferences

ISSN: 2100-014X (Online)
Publisher: EDP Sciences
Country of publisher: France
LCC subjects: Science: Physics
Website: http://www.epj-conferences.org/

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