CsMBi{3) Te{6) とCsM{2) Bi{3) Te{7) (M = Pb, Sn):低次元の構造を持つ新しい熱電化合物である
Kuei-Fang Hsu1, Duck-Young Chung, Sangeeta Lal
1Department of Chemistry, Center for Fundamental Materials Research, Michigan State University, East Lansing, MI 48824, USA.
Journal of the American Chemical Society
|March 14, 2002
まとめ
新しいセシウム鉛ビスムートテルリドとセシウムチンのビスムートテルリド材料が発見されました. これらの化合物は,層状の結晶構造を示し,熱電気研究のための新しいシステムを提供します.
科学分野:
- マテリアルサイエンス 材料科学
- 固体化学 固体化学
- 無機化学 無機化学とは
背景:
- 熱電気材料は,エネルギー変換と廃棄熱の回収に不可欠です.
- 新しい材料の組成を探求することは,熱電性能を改善するために不可欠です.
研究 の 目的:
- 新しい四次性テルリド化合物を発見し,特徴づけること.
- 熱電応用におけるCs-M-Bi-Te (M = Pb, Sn) システムの可能性を調査する.
主な方法:
- CsBi4Te6とPbTeまたはSnTeの反応による新しい材料の合成.
- Cs2Te,Pb (Sn),Bi,Teのステキオメトリック混合物から化合物を製造する.
- 構造特性を決定するための結晶学分析.
主要な成果:
- CsPbBi3Te6およびCsPb2Bi3Te7化合物の発見.CsPbBi3Te6およびCsPb2Bi3Te7化合物の発見.CsPbBi3Te6およびCsPb2Bi3Te7化合物の発見.CsPbBi3Te6およびCsPb2Bi3Te7化合物の発見.CsPbBi3Te6およびCsPb2Bi3Te7化合物の発見.CsPbBi3Te6およびCsPb2Bi3Te7化合物の発見.CsPbBi3Te6およびCsPb2Bi3Te7化合物の発見.
- 同構造CsSnBi3Te6およびCsSn2Bi3Te7化合物の合成.
- NaCl型のスラブがCs原子層と交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互に交互を交互に交互に交互を交互に交互を交互に交互を交互に交互を交互を交互に
結論:
- Cs-M-Bi-Te (M = Pb, Sn) システムは,四次性テロリド材料の新しいクラスを表しています.
- これらの材料は,熱電学的調査のための新しいプラットフォームを提供します.
- 熱電気的性質を最適化するために,微調整組成物とドーピングの機会が存在します.
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