High-performance thermochromic multilayer coatings with W-doped VO2 nanoparticles dispersed in SiO2 matrix prepared on glass at a low temperature
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908622684946432 |
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| author | Vlcek, Jaroslav Kaufman, Michal Nia, Elnaz M. Houska, Jiri Jiang, Jiechao Cerstvy, Radomir Haviar, Stanislav Meletis, Efstathios I. |
| author_facet | Vlcek, Jaroslav Kaufman, Michal Nia, Elnaz M. Houska, Jiri Jiang, Jiechao Cerstvy, Radomir Haviar, Stanislav Meletis, Efstathios I. |
| contents | 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 °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 °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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_27370 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High-performance thermochromic multilayer coatings with W-doped VO2 nanoparticles dispersed in SiO2 matrix prepared on glass at a low temperature Vlcek, Jaroslav Kaufman, Michal Nia, Elnaz M. Houska, Jiri Jiang, Jiechao Cerstvy, Radomir Haviar, Stanislav Meletis, Efstathios I. Materials Science Applied Physics 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 °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 °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. |
| title | High-performance thermochromic multilayer coatings with W-doped VO2 nanoparticles dispersed in SiO2 matrix prepared on glass at a low temperature |
| topic | Materials Science Applied Physics |
| url | https://arxiv.org/abs/2510.27370 |