2018 Fiscal Year Final Research Report
Development of nanocolumn rectenna
| Project/Area Number |
17K18887
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electrical and electronic engineering and related fields
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| Research Institution | Sophia University |
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Principal Investigator |
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| Project Period (FY) |
2017-06-30 – 2019-03-31
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| Keywords | レクテナ / ナノコラム |
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| Outline of Final Research Achievements |
We proposed a novel device called nanocolumn rectenna, which uses GaN nano-columns, being actively studied for LED display. The rectenna is promising for converting visible and near-infrared light into electricity. We designed the structure on the basis electromagnetic simulation. We established the fabrication method required for the nanocolumn rectenna, which consisted of nanocolumns covered by a thin Au layer, embedded in spin-on-glass (SOG) and a top semi-transparent, graphene electrode. The thin Au cover layer was formed by employing oblique angle deposition. The basic characteristics suggested its promise for the nanocolumn rectenna.
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| Free Research Field |
半導体デバイス
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| Academic Significance and Societal Importance of the Research Achievements |
現在主にマイクロ波帯で用いられ，ICカードなどで既に実用化されているレクテナが光領域で動作すれば、全く異なる原理で動作する光センサーや太陽電池となる。従来にない機能を持ち，例えば太陽電池では赤外光の利用は難しいが光レクテナでは，可視光よりも赤外光のほうが動作しやすく，廃熱発電や熱センサーとして期待できる。この実現には極限的な微細構造が必要で，特に集積化が困難であったが，本研究により提案したナノコラムレクテナは優れた集積性，位置制御性によりこのボトルネックを突破しうる。電磁界シミュレーション，試作を通してその有望性を示した本研究は学術的，社会的に高い意義を持つと言える。
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