RT journal article
T1 Optical and electrical properties of thermochromic VO2 thin film combined with Au or Zr-containing compounds nanoparticles
A1 Savorianakis, G.
A1 Martin, N.
A1 Santos Izquierdo-Bueno, Antonio Jesús
A1 Jiménez Ríos, Juan Jesús
A1 Domínguez de la Vega, Manuel
A1 Morales Sánchez, Francisco Miguel
A1 Protsak, M.
A1 Choukourov, A.
A1 Voué, M.
A1 Konstantinidis, S.
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
A2 Física de la Materia Condensada
K1 Vanadium dioxide
K1 Thin films
K1 Thermochromism
K1 Metal nanoparticles
K1 Smart windows
K1 Metal-to-insulator transition
K1 Optical properties
K1 Energy efficiency
AB In this study, we investigate the influence of metal-based nanoparticles (NPs), namely Au and ZrN, on the opticaland electrical characteristics of thermochromic vanadium dioxide (VO2) thin films. Au NPs are prepared by wetchemistry-based methods and are chemically bonded to the VO2 surface via organic linkers, while ZrN NPs aresynthesized by gas aggregation technique and deposited on the VO2 layer, eventually leading to the formation ofadditional Zr-containing compounds (e.g., nitrides, oxides and/or oxynitrides). Two configurations were theninvestigated: i) NPs deposited on the VO2 surface and ii) NPs embedded inside the VO2 layer. The combination ofAu or ZrN NPs with the VO2 surface results in enhanced infrared light modulation, attributed to anti-reflectioneffects induced by the presence of the NPs layer on the VO2 surface. On the other hand, the average metal-toinsulator transition temperature is significantly reduced down to 35.5 ◦C when Au NPs are embedded in theVO2 layer. This is attributed to electron-doping effects and confirmed by the resistivity and optical measurements. Finally, analysis of optical performance parameters such as solar energy modulation, infrared transmittance and luminous transmittance in the visible range provides insights into the overall capabilities of thesematerials for smart window applications. Furthermore, stability assessments show consistent results over temperature cycles, highlighting the reliability of these nanocomposite platforms. This study introduces a dualconfiguration approach to modulate the thermochromic response of VO2 using metal-based nanoparticles,revealing a clear structure–property relationship depending on NP placement and composition.
PB Elsevier
SN 0030-3992
YR 2025
FD 2025-09-02
LK http://hdl.handle.net/10498/38880
UL http://hdl.handle.net/10498/38880
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026