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Showing 1 to 20 of 36 for “"Silicon nanowire"”.
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Stability Investigation of Silicon Nanowire Solar Cells
… techniques used in developing solar cells' nanowire active layer used here. The metal insulator semiconductor structure in which the semiconductor is made of Silicon nanostructures is used in this work to study and investigate the Silicon nanostructure's stability. The back contact and …
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Vertical silicon nanowire arrays for gas sensing
… to fabricate and characterize vertically aligned silicon nanowire gas sensors. Silicon nanowires are very attractive for gas sensing applications and vertically aligned silicon nanowires are preferred over horizontal nanowires for gas sensing due to the high density of nanowire arrays and the …
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Nanoscale magnetic resonance imaging using silicon nanowire oscillators
… We report methods that enable the use of (1) silicon nanowires as ultrasensitive force transducers for magnetic resonance detection and (2) pulsed magnetic resonance techniques for nanometer-scale imaging and spectroscopy. Because of their small size and high aspect ratio, silicon nanowires …
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Multi-functional Hybrid Gating Silicon Nanowire Field-effect Transistors
… or tablets, have led to the emergence of silicon nanowire transistors a decade ago. Along with the Si-based nanotechnology, the silicon compatible optical and chemical sensing applications have boosted the research on hybrid devices that combine the organic and inorganic materials. Apart …
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Highly scaled silicon field emitter arrays with integrated silicon nanowire current limiters
… new device architecture that consists of a sharp silicon emitter atop a silicon nanowire embedded in a dielectric matrix of SiO₂ and SiNx. The 10-[mu]m tall, 200-nm diameter silicon nanowire limits current and improves reliability through velocity saturation and the pinch-off of majority carriers. …
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Silicon nanowire anode for lithium-ion batteries: fabrication, characterization and solid electrolyte interphase
… high operating voltage and high energy density. Silicon nanowires are considered as lithium-ion battery anodes for their ultra high capacity at 4200 mAh·g-1 (10× higher than conventional graphite anode), as well as stress accommodation for reversible lithiation and delithiation. Silicon nanowires …
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Gate-all-around silicon nanowire MOSFETs : top-down fabrication and transport enhancement techniques
… gate-all-around architecture with a Si nanowire channel is a promising candidate for future technology generations. The gate-all-around geometry enhances the electrostatic control and hence gate length scalability. In addition, it enables use of an undoped channel, which has the …
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Broadband High Efficiency Fractal-Like and Diverse Geometry Silicon Nanowire Arrays for Photovoltaic Applications
… thin film PVSC. One promising technique is the nanowire (NW) arrays in general and the silicon nanowire (SiNW) arrays in particular.</p> <p>The purpose of this research is to introduce vertically aligned SiNW arrays with enhanced and broadband absorption covering the entire solar spectrum while …
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Effect of phonon transport on the Seebeck coefficient and thermal conductivity of silicon nanowire arrays
… properties of electrochemically etched silicon nanowires through experiments, complemented by charge and thermal transport theories. Electrolessly etched silicon nanowires show anomalously low thermal conductivity that has been attributed to the increased scattering of heat conducting …
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Fabrication of capacitors based on silicon nanowire arrays generated by metal-assisted wet chemical etching
… chemical etching for fabrication of arrays of silicon nanowires, and then use this understanding to build nanowire array on-chip capacitors in silicon substrates, in order to eliminate additional packaging and enable local and efficient energy delivery. Two types of capacitors were …
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Optimization of silicon photonic devices for polarization diversity applications
… to the study of design optimization of a compact silicon nanowire polarization device. An interesting and useful comparison is made on their operating properties such as the crosstalk, device length, polarization dependence, and fabrication tolerances of the polarization in directional coupler …
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Direct and quantitative absorptive spectroscopy of nanowires
… To validate the use of this technique, a single silicon nanowire is measured. By attaching a silicon nanowire to a cantilever and illuminating the sample with monochromatic light, the absolute absorptance spectrum of the nanowire was measured and shown to match well with theory. This …
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Orientation Controllable Epitaxial Vapor-Liquid-Solid Semiconductor Nanowire Synthesis on Silicon Substrate
<p>Semiconductor nanowires synthesized via the vapor-liquid-solid (VLS) mechanism have attracted extensive research interest in recent years owing to their unique structure as a promising candidate for the future electronic devices. Germanium and silicon nanowires, in particular, are compatible …
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ATOMISTIC MODELING OF PHONON BANDSTRUCTURE AND TRANSPORT FOR OPTIMAL THERMAL MANAGEMENT IN NANOSCALE DEVICES
… a 17% increase in the thermal conductivity for a silicon nanowire due to the incorporation of atomistic corrections in the LA (longitudinal acoustic) branch alone has been reported. The atomistically derived thermal conductivity as calculated from the MM-MC framework is then used in the modular …
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Computational Analysis of Silicon Nanoelectromechanical Systems
… (QC) approach for multiscale analysis of silicon nanostructures at finite temperature. Three models, namely the real space quasiharmonic (QHM) model, the local quasiharmonic (LQHM) model, and the reciprocal space quasiharmonic (QHMK) model are investigated. Within this framework, we …
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Laser direct written silicon nanowires for electronic and sensing applications
<p>Silicon nanowires are promising building blocks for high-performance electronics and chemical/biological sensing devices due to their ultra-small body and high surface-to-volume ratios. However, the lack of the ability to assemble and position nanowires in a highly controlled manner still …
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An evaluation of indium antimonide quantum well transistor technology
… its superior performance, it may complement silicon transistor to extend Moore's law in the next decade. The prospect of InSb transistor is also compared with other nanotechnology transistors, such as carbon nanotube and silicon nanowire. Several potential markets are figured out, namely, …
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Nanoscale thermal transport for biological and physical applications
… lattice thermal conductivity are presented for a silicon nanowire. Based on a continuum approach, a phonon dispersion relation is derived for a nanowire that is under surface stress and the phonon relaxation time is employed to subsequently determine its thermal conductivity. The surface stress is …
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