Wi-Fi帯のワイヤレスエネルギー収集のための二次元MoS2対応の柔軟なレクテンナ
Xu Zhang1, Jesús Grajal2, Jose Luis Vazquez-Roy3
1Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
Nature
|January 30, 2019
まとめ
研究者らは,Wi-Fiのエネルギーを収集するためにモリブデンジスルファイド (MoS2) を使用した柔軟なレクトナを開発しました. バッテリーなしで 自律的に電気を供給する 柔軟な電子機器や スマート・スキン・アプリケーションを可能にします
科学分野:
- 材料科学
- 電気工学
- ナノテクノロジー
背景:
- 二次元材料は柔軟な電子機器や"スマート・スキン"の応用の可能性を秘めています
- 既存のフレキシブルな電子部品には 効率的で常に稼働するエネルギー収集装置が不足しています
- どこにでも存在するWi-Fiの電磁放射線を収集することは理想的ですが,高周波数のために柔軟な半導体には困難です.
研究 の 目的:
- 自給自足の柔軟な電子機器のための効率的で柔軟で常に稼働するエネルギー収集ソリューションを開発する.
- 高周波のWi-Fi信号を収集する現在の柔軟なレクトナの限界を克服する.
- 様々な柔軟な電子システムに統合するための普遍的なエネルギー収集ブロックを作成します.
主な方法:
- モリブデンジスルファイド (MoS2) 半導体金属相ヘテロ結合を用いた原子的に薄く柔軟なレクトナの製造.
- 柔軟なWi-FiバンドアンテナとMoS2直線器の統合
- Wi-Fi帯域における電磁波の収集におけるレクトンナの性能の特徴.
主要な成果:
- 10ギガヘルツのカットオフ周波数を持つ柔軟なMoS2ベースのレクテナの実証,現在の柔軟な整列器よりも数倍速い.
- 外部バイアスゼロのWi-Fi帯の電磁波から無線でエネルギー収集が成功しました (バッテリーなしで動作します).
- MoS2補正器は柔軟なミキサーとして機能し,10ギガヘルツを超える周波数変換を可能にします.
結論:
- 開発されたMoS2レクテナは,効率的なWi-Fiエネルギー収集を可能にする柔軟な電子機器の重要な進歩です.
- この技術は,自給自足のスマートスキンと分散型センサーネットワークの構築に不可欠な要素となります.
- 超高速で柔軟なMoS2補正器は,将来の統合された柔軟な電子システムの汎用的な構成要素として機能します.
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