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Fabrication of thermochromic composite using monodispersed VO2 coated SiO2 nanoparticles prepared by modified chemical solution deposition |
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| Authors: | Hisao Suzuki Kenji Yamaguchi Hidetoshi Miyazaki |
| Affiliation: | aDepartment of Materials Science, Faculty of Engineering, Shizuoka University, 3-5-1, Johoku, Hamamatsu, Shizuoka 432-8561, Japan;bDepartment of Material Science, Faculty of Interdisciplinary Science and Engineering, Shimane University, 1060, Nishikawatsu-cho, Matsue, Shimane, 690-8504, Japan |
| Abstract: | Monodispersed thermochromic VO2 particles were fabricated by VO2 coating onto monodispersed SiO2 nanoparticles with the modified chemical solution deposition technique using vanadium isopropoxide solution and monodispersed SiO2 particle suspension solution. The average size of the resultant VO2–SiO2 particle was 57 nm and the coating thickness of the VO2 layer was 6 nm. A thermochromic composite was fabricated using the VO2–SiO2 particles and a poly lactose acid polymer as a transparent matrix, and the transmittance of the composite at a high temperature was 10% less than that at a low temperature. |
| Keywords: | A Oxides A Smart materials D Transmission electron microscopy (TEM) E Sol– gel methods |
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