Journal ArticleDOI
Silicon nanowires prepared by laser ablation at high temperature
TLDR
The lattice structure and constant of the nanowires as determined from x-ray diffraction (XRD) are nearly identical to those of bulk Si, although the relative XRD peak intensities are different from those of randomly oriented Si crystallites.Abstract:
Silicon nanowires have been synthesized in high yield and high purity by using a high-temperature laser-ablation method with growth rates ranging from 10 to 80 μm/h. Transmission electron microscopic investigation shows that the nanowires are crystalline Si, and have diameters ranging from 3 to 43 nm and length up to a few hundreds microns. Twins and stacking faults have been observed in the Si core of the nanowires. The lattice structure and constant of the nanowires as determined from x-ray diffraction (XRD) are nearly identical to those of bulk Si, although the relative XRD peak intensities are different from those of randomly oriented Si crystallites. Raman scattering from the nanowires shows an asymmetric peak at the same position as that of bulk crystalline silicon.read more
Citations
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Control of Thickness and Orientation of Solution-Grown Silicon Nanowires
TL;DR: Bulk quantities of defect-free silicon nanowires with nearly uniform diameters were grown to a length of several micrometers with a supercritical fluid solution-phase approach, and visible photoluminescence due to quantum confinement effects was observed, as were discrete optical transitions in the ultraviolet-visible absorbance spectra.
Journal ArticleDOI
Silicon-based Nanomaterials for Lithium-Ion Batteries - A Review
TL;DR: In this article, the most recent advance in the applications of 0D (nanoparticles), 1D(nanowires and nanotubes), and 2D (thin film) silicon nanomaterials in lithium-ion batteries are summarized.
Journal ArticleDOI
Small-Diameter Silicon Nanowire Surfaces
TL;DR: These hydrogen-terminated SiNW surfaces seem to be more oxidation-resistant than regular silicon wafer surfaces, because atomically resolved STM images of SiNWs were obtained in air after several days' exposure to the ambient environment.
Journal ArticleDOI
Silicon Nanowires: A Review on Aspects of their Growth and their Electrical Properties
TL;DR: In this article, the authors summarized some of the essential aspects of silicon-nanowire growth and of their electrical properties, including the expansion of the base of epitaxially grown Si wires, a stability criterion regarding the surface tension of the catalyst droplet, and the consequences of the Gibbs-Thomson effect for the silicon wire growth velocity.
Journal ArticleDOI
Silicon Nanowires for Photovoltaic Solar Energy Conversion
Kui-Qing Peng,Shuit-Tong Lee +1 more
TL;DR: The recent developments in the utilization of SiNWs for PV applications, the relationship between SiNW-based PV device structure and performance, and the challenges to obtaining high-performance cost-effective solar cells are reviewed.
References
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Helical microtubules of graphitic carbon
TL;DR: Iijima et al. as mentioned in this paper reported the preparation of a new type of finite carbon structure consisting of needle-like tubes, which were produced using an arc-discharge evaporation method similar to that used for fullerene synthesis.
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C 60 : Buckminsterfullerene
Harold W. Kroto,Harold W. Kroto,James R. Heath,Sean C. O'Brien,Robert F. Curl,Richard E. Smalley +5 more
TL;DR: In this article, the authors proposed a truncated icosahedron, a polygon with 60 vertices and 32 faces, 12 of which are pentagonal and 20 hexagonal.
Journal ArticleDOI
The effects of microcrystal size and shape on the one phonon Raman spectra of crystalline semiconductors
TL;DR: In this article, the effect of the exact shape of the microcrystal and the relationship between the width, shift and asymmetry of the Raman line is calculated and is in good agreement with available experimental data.
Journal ArticleDOI
Growth of silicon nanowires via gold/silane vapor–liquid-solid reaction
TL;DR: In this article, the vapor-liquid-solid (VLS) reaction using silane as the Si source gas and Au as the mediating solvent was used to grow Si wires.
Journal ArticleDOI
Study of the Homology between Silicon and Germanium by Thermal-Neutron Spectrometry
G. Nilsson,G. Nelin +1 more
TL;DR: In this paper, the phonon dispersion relations in silicon and germanium are found to be nearly homologous with small but significant deviations, which are strongly supported by an analysis in which comparison is made with elastic constants, heat capacities, and Raman frequencies for these elements.