| Project/Area Number |
18K04892
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 28030:Nanomaterials-related
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| Research Institution | Tokyo University of Science |
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Principal Investigator |
Ikuno Takashi 東京理科大学, 基礎工学部電子応用工学科, 准教授 (60466331)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | カーボンナノチューブ / 光熱変換 / ドローン / セルロースナノファイバー / 光センサ / 太陽電池 / ナノチューブ / バルーン / センサ / 光電変換 / センサー / 無人飛行体 / ナノカーボン / 複合体 |
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| Outline of Final Research Achievements |
We have developed a balloon type levitation device made of carbon nanotubes (CNTs), which is expected to be silent, windless, long-lasting, and equipped with various sensors. CNTs can instantly heat the space inside a balloon by light irradiation due to their high light absorption property, and can levitate by using the density difference of gas inside and outside the balloon as a driving force. In order to improve the levitation altitude and retention time, it is necessary to maintain the temperature inside the balloon for a long time during the light irradiation. In this study, we attempted to improve the heat-insulating property of the balloon by improving the freestanding films that constitutes the balloon. In addition, to fabricate various thin-film devices on the balloon surface, we developed a fabrication method of the cellulose nanofiber (CNF) films. we also demonstrated fabrications of optical sensors and thin film solar cells on the CNF films.
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| Academic Significance and Societal Importance of the Research Achievements |
屋内に向けた小型浮揚監視システムは，防犯，高齢者のみまもり，ビニールハウス内の農作物監視，建造物内ヘルスモニタリングなど，安心安全社会実現に向けた強いニーズがあるものの，従来型ドローンは，騒音・風の発生と短い浮揚時間等の課題をもつため屋内利用が難しい．そこで，本研究では，無音・無風で浮遊することができるバルーン型浮揚監視システムの実現を目指し，光で浮かぶカーボンナノチューブバルーンを世界で初めて実現することに成功した．本研究により，構成材料の断熱性や電気特性を精密に制御することにより，長時間浮揚するセンサ搭載可能なバルーンを構築できた．
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