BiO(IO3): aurivillius型 (Bi2O2) 2+層と大きなSHG反応を示す新しい極性ヨド酸塩
Sau Doan Nguyen1, Jeongho Yeon, Sang-Hwan Kim
1Department of Chemistry, University of Houston, 136 Fleming Building, Houston, Texas 77204-5003, United States.
Journal of the American Chemical Society
|July 23, 2011
まとめ
新しい極性物質であるBiO (((IO ((3)) は,Bi (((3+) とI (((5+) カチオンを備えたもので,第2ハーモニック生成 (SHG) の有意な性質を示している. その非中心対称構造と非線形光学における潜在的な応用が強調されています.
科学分野:
- 無機化学 無機化学とは
- 材料科学 材料科学とは
- 固体物理 固体物理学
背景:
- 非中心対称性 (NCS) と極性材料は,非線形光学 (NLO) アプリケーションにおいて極めて重要です.
- Aurivillius型化合物は,新しいNLO材料の発見のための有望な構造的枠組みを提供します.
研究 の 目的:
- 新しいNCSの極性物質を合成し,特徴づけ,単一のペアカチオンであるBi(3+) とI(5+) を含んでいる.
- 合成された化合物の第2ハーモニック生成 (SHG) 特性および構造的属性を調査する.
主な方法:
- X線微分法による結晶構造の決定.
- 1064 nm 放射線を用いたセカンドハーモニックジェネレーション (SHG) 測定.
- ポラライゼーション,ピエゾ電気,電子構造分析.
主要な成果:
- オーリビリウス型物質であるBiO (((IO (((3)) の合成と構造的特徴が成功しました.
- 強いSHG応答 (∼12.5 × KDP) の観察.
- NCSの極極オーソロンビック空間群 Pca2 (((1) の識別と,極性とIO (((3) のポリヘッドの並びとの相関.
結論:
- BiO (((IO ((3)) は,重要なNLO特性を持つ有望な新しいNCS極性物質です.
- (Bi(2) O(2)) ((2+) 層と並べられたIO(3) 多面体によって特徴づけられる材料の構造は,その強力なSHG応答を支えている.
- ポラライゼーションとピエゾ電気性のさらなる調査は,その極性性質と光電子機器の潜在能力を確認しています.
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