Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
Feature: Trend of Current Research on Ceramics in East Asia: 30th Japan-Korea International Seminar on Ceramics: Papers
Formation of Si-based nanosheets by extraction of Ca from CaSi2 layers on Si substrates
Xiang MENGHaruo IMAGAWAErchao MENGHiroaki SUZUKIYuya SHIRAHASHIKaito NAKANEHiroshi ITAHARAHirokazu TATSUOKA
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2014 年 122 巻 1428 号 p. 618-621

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It was demonstrated that flake-like structures containing Si-based nanosheets were successfully synthesized on Si(111) substrates. By exposure of CaSi2/Si substrates to CrCl2 vapor, Ca atoms were extracted from CaSi2, then, the Si-based nanosheets were formed. The structural properties of the Si-based nanosheets formed at the edge of the flakes were examined. It is noted that the flake-like structures were rooted to the substrates, and that the Si-based nanosheets were easily exfoliated from the flake-like structures, to expose the surfaces corresponding to the Si{111} planes of the nanosheet, originated from the corrugated Si(111) layers linked by Ca in CaSi2.

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© 2014 The Ceramic Society of Japan
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