強い光子性のあるマクロポラスガリウムリン酸化物ネットワーク
Schuurmans1, Vanmaekelbergh, van de Lagemaat J
1Van der Waals-Zeeman Instituut, Universiteit van Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam, The Netherlands. Debye Instituut, Universiteit Utrecht, Post Office Box 80000, 3508 TA Utrecht, The Netherlands.
Science (New York, N.Y.)
|April 2, 1999
まとめ
研究者は,制御可能な光散乱特性を持つ多孔性ガリウムリン化物 (GaP) を生成する新しい方法を開発しました. このマクロポーラスなGaP素材は,特に空気で満たされた場合,強い光の散乱を示します.
科学分野:
- マテリアルサイエンス 材料科学
- ナノテクノロジー ナノテクノロジー
- オプティクスは光学です.
背景:
- ガリウム酸化物 (GaP) は半導体であり,光電子機器の潜在的応用がある.
- GaPのナノ構造を制御することで,その光学的性質を調整することができます.
- GaPでマクロポールを製造することは,材料設計に課題をもたらす.
研究 の 目的:
- マクロポーラスガリウムリン酸化物 (GaP) を生成するためのフォトアシスト電気化学的エッチング技術を開発する.
- 製造されたマクロポーラスGAPの構造と光学的性質を調査する.
- 孔の特性と充填媒体を調節することによって,光散乱の制御を実証する.
主な方法:
- 単結晶のGaP.をフォトアシスト電気化学でエッチングする.
- 構造分析のためのスキャニング電子顕微鏡 (SEM).
- 結晶学的情報のためのX線微分法 (XRD).
- 光の散乱を評価するための光学伝送測定.
主要な成果:
- ~150 nmの孔を持つ3Dの相互接続されたマクロポーラスGAPネットワークを成功裏に製造しました.
- マクロポラス構造の無秩序で吸収しない性質が確認されました.
- 強烈な光散乱が実証され,効率は孔埋めで調節可能である.
- 空気で満たされたマクロポーラスのGaPが,可視光に対する最も高い散乱率を有することを特定しました.
結論:
- 開発されたフォトアシスト電気化学エッチングは,調節可能なマクロポラスGaPを作成するための効果的な方法です.
- その結果生じるマクロポラスなGaPは,光学的な応用に有用な,有意な光散乱を呈する.
- 孔埋め媒体の屈折率を制御することで,光子の強度調節が可能になります.
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