Optical and electrical properties of thermochromic VO2 thin film combined with Au or Zr-containing compounds nanoparticles
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10508428" target="_blank" >RIV/00216208:11320/25:10508428 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-TCj7pwINj" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-TCj7pwINj</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.optlastec.2025.113847" target="_blank" >10.1016/j.optlastec.2025.113847</a>
Alternative languages
Result language
angličtina
Original language name
Optical and electrical properties of thermochromic VO2 thin film combined with Au or Zr-containing compounds nanoparticles
Original language description
In this study, we investigate the influence of metal-based nanoparticles (NPs), namely Au and ZrN, on the optical and electrical characteristics of thermochromic vanadium dioxide (VO2) thin films. Au NPs are prepared by wet chemistry-based methods and are chemically bonded to the VO2 surface via organic linkers, while ZrN NPs are synthesized by gas aggregation technique and deposited on the VO2 layer, eventually leading to the formation of additional Zr-containing compounds (e.g., nitrides, oxides and/or oxynitrides). Two configurations were then investigated: i) NPs deposited on the VO2 surface and ii) NPs embedded inside the VO2 layer. The combination of Au or ZrN NPs with the VO2 surface results in enhanced infrared light modulation, attributed to anti-reflection effects induced by the presence of the NPs layer on the VO2 surface. On the other hand, the average metal-to-insulator transition temperature is significantly reduced down to 35.5 degrees C when Au NPs are embedded in the VO2 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 these materials for smart window applications. Furthermore, stability assessments show consistent results over temperature cycles, highlighting the reliability of these nanocomposite platforms. This study introduces a dual-configuration approach to modulate the thermochromic response of VO2 using metal-based nanoparticles, revealing a clear structure-property relationship depending on NP placement and composition.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Optics and Laser Technology
ISSN
0030-3992
e-ISSN
1879-2545
Volume of the periodical
192
Issue of the periodical within the volume
December
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
113847
UT code for WoS article
001568063600004
EID of the result in the Scopus database
2-s2.0-105014739765