Formation of VO2 micrometer-scale flaky films and development of thermo-operated surface heat-transfer control devices
| Project/Area Number |
24656424
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural/Functional materials
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
KAKIUCHIDA Hiroshi 独立行政法人産業技術総合研究所, サステナブルマテリアル研究部門, 主任研究員 (40343660)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 酸化バナジウム / メゾフレーク / 三次元ネットワーク / 液相成膜法 / 自己組織化 / サーモクロミック / 光散乱 / 熱伝達特性 / 半導体－金属相転移 / 放熱・断熱制御 / 熱検知 / ガラス基板 / 大面積化 / バッファ層 / 成膜前処理 / 成膜後処理 / レーザ改質 / 表面熱伝達 / 膜品質向上 / バイオミメティック材料 / 液相法 / 相転移 / 断熱・放熱 / 対流 / 放射率 |
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| Outline of Final Research Achievements |
Vanadium oxide films with meso-scale (submicron- to micron-scale) flaky structures were formed using liquid phase deposition method, which is a sort of self-assembling process. Then, the optical transmittance property was discovered having a peculiar thermo-response. This is unexplainable only with an idea of conventional thermochromic behavior which has been observed in closely-packed vanadium dioxide. According to optical analysis of this thermo-response, the refractive-index change due to thermochromism may be a primary origin of this phenomenon. That is, the change in optical scattering property, which is strongly connected to refractive index, is considered to contribute this thermo-response. Furthermore, our study focused on the techniques for large-area deposition and for examination of heat transfer property.
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Report
(4 results)
Research Products
(3 results)
