Ultra-Stable nanoparticles in A IIB VI, (A II = Cd, Zn; B VI = S, Se, Te) compounds

V. R. Romanyuk, I. M. Dmitruk, Yu A. Barnakov, R. V. Belosludov, A. Kasuya

研究成果: Article査読

10 被引用数 (Scopus)

抄録

Laser ablation on binary A IIB VI compounds exhibits in time-of-flight mass spectra abundant peaks at stoichiometric (A<IIB vI:)n with n = 13, 19, 33 and 34 measured on bulk powders of CdSe, CdS, CdTe, ZnS and ZnSe. Investigation on solution grown nanometer size particles of CdSe shown an existence of ultra-stable stoichiometric clusters (CdSe) 13 (CdSe) 19 (CdSe) 33 (CdSe) 34 and (CdSe) 48. This set of n has not been predicted as particularly stable particles in previous bulk fragment models based on either zinc-blende or wurtzite, and a different type of structures is required to explain our experimental results. Present investigation shows that nanoparticles formed in vacuum as magic numbers above are found in solution as preferentially grown species in CdSe, and possibly in other A IIB VI. It is suggested that the high stability of the observed magic clusters originates from their specific structure as endohedral binary fullerenes, supposedly. These molecular-like particles composed of few tens of atoms lie between atom and solid, and exhibit novel materials functions not realizable in the bulk.

本文言語English
ページ(範囲)2111-2118
ページ数8
ジャーナルJournal of Nanoscience and Nanotechnology
9
3
DOI
出版ステータスPublished - 2009 3

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 化学 (全般)
  • 生体医工学
  • 材料科学(全般)
  • 凝縮系物理学

フィンガープリント

「Ultra-Stable nanoparticles in A <sub>II</sub>B <sub>VI</sub>, (A <sub>II</sub> = Cd, Zn; B <sub>VI</sub> = S, Se, Te) compounds」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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