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From smart contact lenses to supercooled silicon

From smart contact lenses to supercooled silicon RESEARCH NOTES Structure regained in supercooled liquid silicon Implanted optics microelectronic devices, it Despite recent advances in carbon electronics, crystalline silicon still dominates semiconductor also provides a simple and technology. The large wafers of silicon used to fabricate electronic devices are grown from the melt, scalable tool for making and future techniques for producing silicon chips may involve imprinting of a thin molten layer. optical waveguides for The properties of the liquid and supercooled liquid state of silicon are therefore of some importance. photonic and But because of silicon’s high melting point (1,414 °C) and corrosive nature, measuring the properties optoelectronic of these liquid states has been rather difficult. Using a contactless ‘levitation’ technique, in which a applications (B. L. Weiss silicon sample is heated from above and below by two lasers, Noel Jakse and colleagues have now et al. IEEE Photonics investigated the atomic structure of liquid silicon deep into the supercooled region (Applied Physics Technology Letters 3, Letters 83, 4734–4736; 2003). The researchers find that the coordination number of the liquid phase 19–21; 1991). Writing in decreases with temperature into the supercooled region. The tetrahedral structure of the solid phase Applied Physics Letters, is also apparent in http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nature Materials Springer Journals

From smart contact lenses to supercooled silicon

Nature Materials , Volume 3 (2) – Feb 1, 2004

From smart contact lenses to supercooled silicon

Abstract

RESEARCH NOTES Structure regained in supercooled liquid silicon Implanted optics microelectronic devices, it Despite recent advances in carbon electronics, crystalline silicon still dominates semiconductor also provides a simple and technology. The large wafers of silicon used to fabricate electronic devices are grown from the melt, scalable tool for making and future techniques for producing silicon chips may involve imprinting of a thin molten layer. optical waveguides for The properties of...
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Publisher
Springer Journals
Copyright
Copyright © 2004 by Nature Publishing Group
Subject
Materials Science; Materials Science, general; Optical and Electronic Materials; Biomaterials; Nanotechnology; Condensed Matter Physics
ISSN
1476-1122
eISSN
1476-4660
DOI
10.1038/nmat1071
Publisher site
See Article on Publisher Site

Abstract

RESEARCH NOTES Structure regained in supercooled liquid silicon Implanted optics microelectronic devices, it Despite recent advances in carbon electronics, crystalline silicon still dominates semiconductor also provides a simple and technology. The large wafers of silicon used to fabricate electronic devices are grown from the melt, scalable tool for making and future techniques for producing silicon chips may involve imprinting of a thin molten layer. optical waveguides for The properties of the liquid and supercooled liquid state of silicon are therefore of some importance. photonic and But because of silicon’s high melting point (1,414 °C) and corrosive nature, measuring the properties optoelectronic of these liquid states has been rather difficult. Using a contactless ‘levitation’ technique, in which a applications (B. L. Weiss silicon sample is heated from above and below by two lasers, Noel Jakse and colleagues have now et al. IEEE Photonics investigated the atomic structure of liquid silicon deep into the supercooled region (Applied Physics Technology Letters 3, Letters 83, 4734–4736; 2003). The researchers find that the coordination number of the liquid phase 19–21; 1991). Writing in decreases with temperature into the supercooled region. The tetrahedral structure of the solid phase Applied Physics Letters, is also apparent in

Journal

Nature MaterialsSpringer Journals

Published: Feb 1, 2004

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