Morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers

Silicon (Si) nanowires are important building blocks in the devices of photonics, quantum-dots, optoelectronics and energy. So far, however, the morphology is yet well studied. In this work, Si/Si-oxide nanowires were grown through thermal annealing of nickel (Ni) coated Si wafers. Side-by-side biax...

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Main Authors: Li, Feng Ji, Zhang, Sam, Guo, Jun, Li, Bo
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2015
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Online Access:https://hdl.handle.net/10356/103958
http://hdl.handle.net/10220/24658
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1039582020-03-07T13:22:21Z Morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers Li, Feng Ji Zhang, Sam Guo, Jun Li, Bo School of Mechanical and Aerospace Engineering DRNTU::Engineering::Materials::Nanostructured materials DRNTU::Engineering::Aeronautical engineering::Materials of construction Silicon (Si) nanowires are important building blocks in the devices of photonics, quantum-dots, optoelectronics and energy. So far, however, the morphology is yet well studied. In this work, Si/Si-oxide nanowires were grown through thermal annealing of nickel (Ni) coated Si wafers. Side-by-side biaxial, smooth or sinusoidal triple-concentric, fishbone-profiled, Ni-nanosphere entrapped nanowires, and the transitional morphologies were observed co-existing with the most abundant coaxial ones. The relation between the nanowires and the seeding particles is carefully explored via transmission electron microscopy and selected area electron diffraction pattern. In conjunction with the scrutiny of the existing mechanisms, it is found that the morphology of the nanowires is controlled by the diameter, vibration, phase distribution, and the eutectic precipitation of the seeding Ni–Si–O droplets. A detailed growth mechanism is proposed. 2015-01-16T07:35:03Z 2019-12-06T21:23:35Z 2015-01-16T07:35:03Z 2019-12-06T21:23:35Z 2014 2014 Journal Article Li, F. J., Zhang, S., Guo, J., & Li, B. (2014). Morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers. Nanoscience and nanotechnology letters, 6(6), 505-514. https://hdl.handle.net/10356/103958 http://hdl.handle.net/10220/24658 10.1166/nnl.2014.1817 en Nanoscience and nanotechnology letters © 2014 American Scientific Publishers.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Materials::Nanostructured materials
DRNTU::Engineering::Aeronautical engineering::Materials of construction
spellingShingle DRNTU::Engineering::Materials::Nanostructured materials
DRNTU::Engineering::Aeronautical engineering::Materials of construction
Li, Feng Ji
Zhang, Sam
Guo, Jun
Li, Bo
Morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers
description Silicon (Si) nanowires are important building blocks in the devices of photonics, quantum-dots, optoelectronics and energy. So far, however, the morphology is yet well studied. In this work, Si/Si-oxide nanowires were grown through thermal annealing of nickel (Ni) coated Si wafers. Side-by-side biaxial, smooth or sinusoidal triple-concentric, fishbone-profiled, Ni-nanosphere entrapped nanowires, and the transitional morphologies were observed co-existing with the most abundant coaxial ones. The relation between the nanowires and the seeding particles is carefully explored via transmission electron microscopy and selected area electron diffraction pattern. In conjunction with the scrutiny of the existing mechanisms, it is found that the morphology of the nanowires is controlled by the diameter, vibration, phase distribution, and the eutectic precipitation of the seeding Ni–Si–O droplets. A detailed growth mechanism is proposed.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Li, Feng Ji
Zhang, Sam
Guo, Jun
Li, Bo
format Article
author Li, Feng Ji
Zhang, Sam
Guo, Jun
Li, Bo
author_sort Li, Feng Ji
title Morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers
title_short Morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers
title_full Morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers
title_fullStr Morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers
title_full_unstemmed Morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers
title_sort morphology of silicon/silicon-oxide nanowires grown from nickel-coated silicon wafers
publishDate 2015
url https://hdl.handle.net/10356/103958
http://hdl.handle.net/10220/24658
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