Visualizing the Mechanism Switching in High-Temperature Au-Catalyzed InAs Nanowire Growth
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Escobar Steinvall, Simon
[2
,3
]
Johansson, Jonas
论文数: 0引用数: 0
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机构:
Lund Univ, Div Solid State Phys, S-22100 Lund, Sweden
Lund Univ, NanoLund, S-22100 Lund, SwedenLund Univ, Div Solid State Phys, S-22100 Lund, Sweden
Johansson, Jonas
[1
,3
]
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Lehmann, Sebastian
[1
,3
]
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Tornberg, Marcus
[2
,3
]
Jacobsson, Daniel
论文数: 0引用数: 0
h-index: 0
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Lund Univ, NanoLund, S-22100 Lund, Sweden
Lund Univ, Natl Ctr High Resolut Elect Microscopy, S-22100 Lund, SwedenLund Univ, Div Solid State Phys, S-22100 Lund, Sweden
Jacobsson, Daniel
[3
,4
]
Dick, Kimberly A.
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Lund Univ, Ctr Anal & Synth, S-22100 Lund, Sweden
Lund Univ, NanoLund, S-22100 Lund, SwedenLund Univ, Div Solid State Phys, S-22100 Lund, Sweden
Dick, Kimberly A.
[2
,3
]
机构:
[1] Lund Univ, Div Solid State Phys, S-22100 Lund, Sweden
[2] Lund Univ, Ctr Anal & Synth, S-22100 Lund, Sweden
[3] Lund Univ, NanoLund, S-22100 Lund, Sweden
[4] Lund Univ, Natl Ctr High Resolut Elect Microscopy, S-22100 Lund, Sweden
We use environmentaltransmission electron microscopyto observe in situ the switch from an axial vapor-liquid-solid(VLS) growth mechanism in Au-catalyzed InAs nanowires toward a radialvapor-solid (VS) one, dominated by layers nucleating at thetriple-phase line. At elevated temperatures, in addition to high V/IIIratios, the affinity for In in the Au catalyst will be greater thanthat of In in InAs, which in turn reduces the driving force and probabilityfor nucleation at the liquid-solid interface. Consequently,with increased temperature, the catalyst particle stops acting asa sink for incoming material and the decomposition of precursors awayfrom the catalyst increases, making radial vapor-solid growththe dominating growth mechanism. It is further observed that the growthproceeds through multistep propagation rather than a layer-by-layerpropagation under these conditions. Using in situ transmission electron microscopywe directly observe the switching from axial to radial growth in Au-catalyzedInAs nanowires and elucidate the mechanisms at play to limit vapor-liquid-solidgrowth.
机构:
Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Hong Kong Univ Sci & Technol, Inst Nanosci & Technol, Hong Kong, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Cai, Y.
Wong, T. L.
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Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Hong Kong Univ Sci & Technol, Inst Nanosci & Technol, Hong Kong, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Wong, T. L.
Chan, S. K.
论文数: 0引用数: 0
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Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Hong Kong Univ Sci & Technol, Inst Nanosci & Technol, Hong Kong, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Chan, S. K.
Sou, I. K.
论文数: 0引用数: 0
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Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Hong Kong Univ Sci & Technol, Inst Nanosci & Technol, Hong Kong, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Sou, I. K.
Su, D. S.
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Fritz Haber Inst, Dept Inorgan Chem, Max Planck Soc, D-14195 Berlin, GermanyHong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Su, D. S.
Wang, N.
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Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Hong Kong Univ Sci & Technol, Inst Nanosci & Technol, Hong Kong, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
机构:
St Petersburg Acad Univ, St Petersburg 194021, Russia
Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
ITMO Univ, St Petersburg 197101, RussiaSt Petersburg Acad Univ, St Petersburg 194021, Russia
Dubrovskii, V. G.
Timofeeva, M. A.
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St Petersburg Acad Univ, St Petersburg 194021, RussiaSt Petersburg Acad Univ, St Petersburg 194021, Russia
Timofeeva, M. A.
Kelrich, A.
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Technion Israel Inst Technol, Fac Elect Engn, IL-32000 Haifa, IsraelSt Petersburg Acad Univ, St Petersburg 194021, Russia
Kelrich, A.
Ritter, D.
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Technion Israel Inst Technol, Fac Elect Engn, IL-32000 Haifa, IsraelSt Petersburg Acad Univ, St Petersburg 194021, Russia
机构:
St Petersburg Acad Univ, St Petersburg 194021, Russia
ITMO Univ, St Petersburg 197101, RussiaSt Petersburg Acad Univ, St Petersburg 194021, Russia
Koryakin, Alexander A.
Kukushkin, Sergey A.
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RAS, Inst Problems Mech Engn, St Petersburg 199178, RussiaSt Petersburg Acad Univ, St Petersburg 194021, Russia
Kukushkin, Sergey A.
Kotlyar, Konstantin P.
论文数: 0引用数: 0
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St Petersburg Acad Univ, St Petersburg 194021, RussiaSt Petersburg Acad Univ, St Petersburg 194021, Russia
Kotlyar, Konstantin P.
Ubyivovk, Evgenii D.
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ITMO Univ, St Petersburg 197101, Russia
St Petersburg State Univ, St Petersburg 198504, RussiaSt Petersburg Acad Univ, St Petersburg 194021, Russia
Ubyivovk, Evgenii D.
Reznik, Rodion R.
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ITMO Univ, St Petersburg 197101, RussiaSt Petersburg Acad Univ, St Petersburg 194021, Russia
Reznik, Rodion R.
Cirlin, George E.
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St Petersburg Acad Univ, St Petersburg 194021, Russia
ITMO Univ, St Petersburg 197101, Russia
St Petersburg Electrotech Univ LETI, St Petersburg 197022, RussiaSt Petersburg Acad Univ, St Petersburg 194021, Russia