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arXiv · 2510.27370

High-performance thermochromic multilayer coatings with W-doped VO2 nanoparticles dispersed in SiO2 matrix prepared on glass at a low temperature

Jaroslav Vlcek·Michal Kaufman·Elnaz M. Nia·Jiri Houska·Jiechao Jiang·Radomir Cerstvy·Stanislav Haviar·Efstathios I. Meletis
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Abstract

We report a high-performance thermochromic VO2-based coating prepared by using a three-step process, consisting of magnetron sputter depositions of SiO2 films and V-W films and their postannealing, on standard glass at a low substrate temperature of 350 {\deg}C without opening the vacuum chamber to atmosphere. It is formed by four layers of W-doped VO2 nanoparticles dispersed in SiO2 matrix. The coating exhibits a transition temperature of 33 {\deg}C with an integral luminous transmittance of 65.4% (low-temperature state) and 60.1% (high-temperature state), and a modulation of the solar energy transmittance of 15.3%. Such a combination of properties, together with the low temperature during preparation, fulfill the requirements for large-scale implementation on building glass and have not been reported yet.

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BibTeXRIS

Jaroslav Vlcek, Michal Kaufman, Elnaz M. Nia, Jiri Houska, Jiechao Jiang, Radomir Cerstvy, Stanislav Haviar, Efstathios I. Meletis. 2025-10-31. High-performance thermochromic multilayer coatings with W-doped VO2 nanoparticles dispersed in SiO2 matrix prepared on glass at a low temperature. https://arxiv.org/abs/2510.27370

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