Growth of Ca2Si layers on Mg2Si/Si(111) substrates

Matsui, H.; Kuramoto, Makoto; Ono, Toshirou; Nose, Yasuo; Tatsuoka, Hirokazu; Kuwabara, H.

doi:10.1016/s0022-0248(01)02276-x

Cited by 37 publications

(27 citation statements)

References 12 publications

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“…17) But by keeping the lid a little loose, the vapor pressure inside the container is reduced to form silicon-rich silicides. For the CrCl 2 treatment, the reaction apparatus was flushed with argon gas for 10 min to remove any oxygen and moisture in the furnace.…”

Section: Methodsmentioning

confidence: 99%

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Formation of Si-based nanosheets by extraction of Ca from CaSi<sub>2</sub> layers on Si substrates

Meng

Imagawa

Meng

et al. 2014

J. Ceram. Soc. Japan

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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 CaSi 2 /Si substrates to CrCl 2 vapor, Ca atoms were extracted from CaSi 2 , 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 CaSi 2 .

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Section: Methodsmentioning

confidence: 99%

“…The growth of a Ca-Silicide layer with reactive deposition epitaxy (RDE) is reported. 17) Using metal chlorides, the formation of silicides and silicon nanostructures and their structural modification have been intensively investigated. For example, CrCl 2 is used to synthesize Si-based nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Formation of Si-based nanosheets by extraction of Ca from CaSi<sub>2</sub> layers on Si substrates

Meng

Imagawa

Meng

et al. 2014

J. Ceram. Soc. Japan

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“…The electronic structures of Ca 2 Si have been calculated and a direct transition was expected [1][2][3]. The Ca 2 Si layers/powders have been successfully grown by the heat treatment of Si/Mg 2 Si substrates/powders under Ca vapors, and compacts were synthesized by a spark plasma sintering (SPS) technique [4][5][6][7][8][9][10]. In addition, it was found that the Ca 2 Si showed a semiconducting behavior [7][8][9][10], however, the conductivity of the Ca 2 Si was still low and influenced the thermoelectric properties [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Na Addition on Electric Properties of Ca₂Si Sintered Compacts

Wen

Nonomura

Isobe

et al. 2011

IOP Conf. Ser.: Mater. Sci. Eng.

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“…The development of reactive deposition techniques has allowed us to grow new novel silicides, such as Ca 2 Si and Sr 2 Si [5][6][7][8]12]. In addition, a vacuum-free growth technique for the β-FeSi 2 layers or bulk preparations has been developed on the basis of the reactive deposition techniques [13].…”

Section: Resultsmentioning

confidence: 99%

“…The electronic properties of the AEM silicides have been comprehensively investigated [3,4]. Concerning the Ca-based silicides, the Ca 2 Si layers and bulk crystals were successfully grown using Mg 2 Si/Si and Mg 2 Si substrates, respectively [5][6][7]. Moreover, the Ca 5 Si 3 powders were obtained by the heat treatment of Si powders under Ca vapor [8].…”

Section: Introductionmentioning

confidence: 99%

Growth of Ca-Germanide and Ca-Silicide Crystals by Mechanical Alloying

Warashina

Ito

Nakamura

et al. 2009

e-J. Surf. Sci. Nanotechnol.

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Ca-germanide and Ca-silicide crystals were synthesized by mechanical alloying (MA). The resulting powders made from the Ca and Si powders contain Ca2Si and/or Ca5Si3 phases with additional cubic phase crystals. The grown phases, namely Ca2Si and Ca5Si3, can be controlled by the Ca/Si ratio and the Si powder size. For the powders synthesized using the Ca and Ge powders, the cubic crystalline phase was synthesized. It was found that the powders synthesized from the Ca and Ge powders are covered by an amorphous layer that contains oxidized carbons. The Ca-based bulk tablets pressed from the powders show a p-type semiconducting behavior, though the powder surface is heavily oxidized, which might affect the transport property of the bulk.

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Growth of Ca2Si layers on Mg2Si/Si(111) substrates

Cited by 37 publications

References 12 publications

Formation of Si-based nanosheets by extraction of Ca from CaSi<sub>2</sub> layers on Si substrates

Formation of Si-based nanosheets by extraction of Ca from CaSi<sub>2</sub> layers on Si substrates

Effect of Na Addition on Electric Properties of Ca₂Si Sintered Compacts

Growth of Ca-Germanide and Ca-Silicide Crystals by Mechanical Alloying

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Growth of Ca2Si layers on Mg2Si/Si(111) substrates

Cited by 37 publications

References 12 publications

Formation of Si-based nanosheets by extraction of Ca from CaSi<sub>2</sub> layers on Si substrates

Formation of Si-based nanosheets by extraction of Ca from CaSi<sub>2</sub> layers on Si substrates

Effect of Na Addition on Electric Properties of Ca2Si Sintered Compacts

Growth of Ca-Germanide and Ca-Silicide Crystals by Mechanical Alloying

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Effect of Na Addition on Electric Properties of Ca₂Si Sintered Compacts