Silicon nanowires and whiskers obtained by arc discharge

Korpinarov, N.; Marinov, M.; Dimova‐Malinovska, D.; Nichev, H.; Konstantinova, M.; Vasil’ev, D. V.

doi:10.1088/1742-6596/113/1/012007

Cited by 5 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While many works have resulted in the formation of silicon nanowires using a variety of methods such as laser ablation [28], thermal evaporation [29,30], chemical vapor deposition [31], and DC arcdischarge [32,33], only very few works are reported in literature for the synthesis of silicon nanotubes [24,31,34]. In general, the formation of silicon cage-like and tubular structures is not favored owing to the inclination of silicon atoms to form sp 3 rather than sp 2 bonds.…”

Section: Resultsmentioning

confidence: 99%

Combustion Characteristics of Silicon‐Based Nanoenergetic Formulations with Reduced Electrostatic Discharge Sensitivity

Thiruvengadathan

Belarde

Bezmelnitsyn

et al. 2012

Propellants Explo Pyrotec

View full text Add to dashboard Cite

This paper details the synthesis and combustion characteristics of silicon-based nanoenergetic formulations. Silicon nanostructured powder (with a wide variety of morphologies such as nanoparticles, nanowires, and nanotubes) were produced by DC plasma arc discharge route. These nanostructures were passivated with oxygen and hydrogen post-synthesis. Their structural, morphological, and vibrational properties were investigated using X-ray diffractometry, transmission electron microscopy (TEM), nitrogen adsorption-desorption analysis, Fourier transform infrared (FTIR) spectrometry and Raman spectroscopy. The silicon nanostructured powder (fuel) was mixed with varying amounts of sodium perchlorate (NaClO 4 ) nanoparticles (oxidizer) to form nanoenergetic mixtures. The NaClO 4 nanoparticles with a size distribution in the range of 5-40 nm were prepared using surfactant in a mixed solvent system. The combustion characteristics, namely (i) the combustion wave speed and (ii) the pressure-time characteristics, were measured. The observed correlation between the basic material properties and the measured combustion characteristics is presented. These silicon-based nanoenergetic formulations exhibit reduced sensitivity to electrostatic discharge (ESD).

show abstract

Section: Resultsmentioning

confidence: 99%

Combustion Characteristics of Silicon‐Based Nanoenergetic Formulations with Reduced Electrostatic Discharge Sensitivity

Thiruvengadathan

Belarde

Bezmelnitsyn

et al. 2012

Propellants Explo Pyrotec

View full text Add to dashboard Cite

show abstract

“…Zinc‐oxide nanowires (NW) and nanorods (NR) are being widely studied for their potential application in excitonic solar cells (XSC) 1 as an electron‐transport material 2, among other applications 3–5. In effect, ZnO is a transparent n‐type direct semiconductor 6 whose bandgap energy E g is usually found between 3.2 and 3.4 eV 7 at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Zinc‐oxide nanowires electrochemically grown onto sol–gel spin‐coated seed layers

Bojorge

Kent

Téliz

et al. 2011

Physica Status Solidi (a)

View full text Add to dashboard Cite

Phone: þ598 2 711 09 05, Fax: þ598 2 711 16 30The electrochemical deposition of ZnO nanowires (NW) was optimized by growing onto a previously deposited seed layer. The ZnO seed layer was prepared by a sol-gel process from different precursor solutions and deposited onto FTO/glass by spin coating. Afterwards, NW were electrochemically grown onto those seed layers. The electrolyte was an aqueous solution of the Zn þ2 precursor (1 mM zinc acetate) and a supporting electrolyte (0.1 M sodium acetate), saturated with bubbling oxygen. The films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and optical transmittance. The XRD measurements show typical diffraction pattern of ZnO wurtzite structure. The SEM micrographs show the presence of smooth NW with hexagonal sections with diameters ranging from 40 to 250 nm. The optical transmittance reveals the presence of ZnO with bandgap energy between 3.23 and 3.29 eV. These spectra show a monotonically increasing transmittance from the UV into the red part of the spectrum. This feature may be originated in the dispersion of light at the NW and can be used to enhance below-gap absorption.

show abstract

“…They first drilled two holes in the graphite anode and then filled them with the mixture of Si crystal and graphite powders at the ratio of 9:1 [67]. The area of the cross section of anode was 12 Â 10 mm 2 and that of cathode was 6 mm 2 .…”

Section: Si Nanowiresmentioning

confidence: 99%