分子フェロ弾性:フェロセニウムテトラクロロフェラートで観測された狭いバンドギャップ
Han-Yue Zhang1, Chun-Li Hu2,3, Zhao-Bo Hu4
1Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , People's Republic of China.
Journal of the American Chemical Society
|January 25, 2020
まとめ
研究者はフェロセニウムテトラクロロフェラートという 新しい分子フェロ弾性物質を開発しました この材料は高キュリー温度と狭い1.61 eV帯のギャップを示し,光電子アプリケーションの限界を克服します.
科学分野:
- 材料科学
- 固体化学
- 有機金属化学
背景:
- 分子材料は多機能的な用途に 調整可能な性質を備えています
- 光電子特性を有する分子フェロ弾性物質は非常に興味深い.
- 既存のフェロ弾性材料は,帯域の隙間が2.0 eV以上で,その使用を制限しています.
研究 の 目的:
- 狭いバンドの隙間を持つ分子フェロ弾性物質を設計し合成する.
- 新しい有機金属化合物の鉄弾性および光電子性について調査する.
- 半導体特性とのフェロ弾性との不適合性を克服する.
主な方法:
- 有機金属化合物であるフェロセニウムテトラクロロフェラートの合成 (1).
- 温度依存測定を用いたフェロ弾性相変化の分析
- UVに対する吸収スペクトルとDFT計算を用いた帯域ギャップの決定.
主要な成果:
- フェロセニウムテトラクロロフェラート (1) は,407. 7Kで0. 1088の自発的なストレスのフェロ弾性相移行を示します.
- この化合物は,UV-visとDFTによって確認された 1.61 eVの狭いバンドギャップを持っています.
- これは最初の高キュリー温度と 狭いバンドギャップを持つ分子フェロ弾性物質です
結論:
- 狭い帯のギャップはフェロセニウムとテトラクロロフェラート成分の両方に起因する.
- 半導体の性質は 分子フェロ弾性における 画期的な進歩を表しています
- この材料は,光電子装置,特に光伏に重要な可能性を秘めています.
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