| Measurement of the bending strength of vapor-liquid-solid grown silicon nanowires. | |
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MedLine Citation:
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PMID: 16608255 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The fracture strength of silicon nanowires grown on a [111] silicon substrate by the vapor-liquid-solid process was measured. The nanowires, with diameters between 100 and 200 nm and a typical length of 2 microm, were subjected to bending tests using an atomic force microscopy setup inside a scanning electron microscope. The average strength calculated from the maximum nanowire deflection before fracture was around 12 GPa, which is 6% of the Young's modulus of silicon along the nanowire direction. This value is close to the theoretical fracture strength, which indicates that surface or volume defects, if present, play only a minor role in fracture initiation. |
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Authors:
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Samuel Hoffmann; Ivo Utke; Benedikt Moser; Johann Michler; Silke H Christiansen; Volker Schmidt; Stephan Senz; Peter Werner; Ulrich Gösele; Christophe Ballif |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Nano letters Volume: 6 ISSN: 1530-6984 ISO Abbreviation: Nano Lett. Publication Date: 2006 Apr |
Date Detail:
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Created Date: 2006-04-12 Completed Date: 2006-06-01 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 101088070 Medline TA: Nano Lett Country: United States |
Other Details:
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Languages: eng Pagination: 622-5 Citation Subset: IM |
Affiliation:
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EMPA Materials Science and Technology, Feuerwerkerstrasse 39, 3602 Thun, Switzerland. samuel.hoffmann@empa.ch |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Computer Simulation Crystallization / methods* Elasticity Macromolecular Substances / chemistry Materials Testing / methods* Mechanics Microscopy, Atomic Force / methods* Models, Chemical Molecular Conformation Nanotechnology / methods Nanotubes / chemistry*, ultrastructure* Particle Size Protein Binding Silicon / chemistry* Stress, Mechanical Tensile Strength |
| Chemical | |
Reg. No./Substance:
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0/Macromolecular Substances; 7440-21-3/Silicon |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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