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Capillary stability...
Capillary stability of vapor-liquid-solid crystallization processes and their comparison to Czochralski and Stepanov growth methods
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- Nebol'sin, Valery A. (author)
- Voronezh State Technical University
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- Suyatin, Dmitry B. (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Lomonosov Moscow State University
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- Dunaev, Alexander I. (author)
- Voronezh State Technical University
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- Tatarenkov, Alexander F. (author)
- Voronezh State Technical University
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(creator_code:org_t)
- Elsevier BV, 2017
- 2017
- English 8 s.
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In: Journal of Crystal Growth. - : Elsevier BV. - 0022-0248. ; 463, s. 46-53
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http://dx.doi.org/10...
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Abstract
Subject headings
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- Epitaxial semiconductor nanowires grown with vapor-liquid-solid crystallization processes are very attractive nanoscale objects for many different applications. Despite extensive studies of the growth mechanism, there is still a lack of understanding of the growth process; in particular, the stability of the vapor-liquid-solid crystallization process has not previously been studied. Here we examine the capillary stability of the vapor-liquid-solid growth of nanowires and filamentary crystals with different diameters and demonstrate that the growth is stable for small Bond numbers when the meniscus height is linearly dependent on catalyst diameter. The capillary stability of vapor-liquid-solid growth is also compared with capillary stability in the Stepanov and Czochralski crystal growth methods; it is shown that capillary stability is not possible in the Czochralski method, although it is possible in the Stepanov growth method when the ratio of crystal diameter to shaper diameter is >1/2. These findings are important for better understanding and improved control of the growth of nanowires and filamentary crystals and indicate, for example, that large diameter filamentary crystals can be grown via a vapor-liquid-solid mechanism if the influence of gravity forces on the liquid catalytic particle shape can be reduced.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- A1. Growth models
- A1. Nanostructures
- B1. Nanomaterials
- B1. Nanowires
- B2. Semiconducting III-V materials
- B2. Semiconducting materials
- B2. Semiconducting silicon
Publication and Content Type
- art (subject category)
- ref (subject category)
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