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Silicon nanowire-based solar cells
Nanotechnology, 2008The fabrication of silicon nanowire-based solar cells on silicon wafers and on multicrystalline silicon thin films on glass is described. The nanowires show a strong broadband optical absorption, which makes them an interesting candidate to serve as an absorber in solar cells.
Th, Stelzner +5 more
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Sawtooth Faceting in Silicon Nanowires
Physical Review Letters, 2005We observe in situ the vapor-liquid-solid (VLS) growth of Si nanowires, in UHV-CVD using Au catalyst. The nanowire sidewalls exhibit periodic sawtooth faceting, reflecting an oscillatory growth process. We interpret the facet alternation as resulting from the interplay of the geometry and surface energies of the wire and liquid droplet.
F M, Ross, J, Tersoff, M C, Reuter
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Nanodevices Based on Silicon Nanowires
Recent Patents on Nanotechnology, 2009Silicon nanowires (SiNWs) have been demonstrated as one of the promising building blocks for future nanodevices such as field effect transistors, solar cells, sensors and lithium battery; much progress has been made in this field during last decades.
Yuting, Wan +5 more
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Silicon Nanowire Thermoelectrics
Solar Energy: New Materials and Nanostructured Devices for High Efficiency, 2008Heat dissipation in fundamentally modified in nanoscale materials, leading to new opportunities for high efficiency thermoelectric materials designed for energy conversion. I will review recent work in 3 classes of materials, including Si nanowire thermoelectrics.
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Small-Diameter Silicon Nanowire Surfaces
Science, 2003Small-diameter (1 to 7 nanometers) silicon nanowires (SiNWs) were prepared, and their surfaces were removed of oxide and terminated with hydrogen by a hydrofluoric acid dip. Scanning tunneling microscopy (STM) of these SiNWs, performed both in air and in ultrahigh vacuum, revealed atomically resolved images that can be interpreted as ...
D D D, Ma +4 more
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Silicon Nanowire Array Photoelectrochemical Cells
Journal of the American Chemical Society, 2007Silicon nanowire arrays were grown by vapor−liquid−solid growth from SiH4 vapor at 500 °C, and tested as photocathodes in [Ru(bpy)3]2+ (bpy = 2,2‘-bipyridyl)/acetonitrile solutions. Si nanowires were grown in anodic aluminum oxide membranes by first electroplating 50 μm long Co wires capped with 250 nm gold segments in the pores and then reacting with ...
Adrian P, Goodey +4 more
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Metal-Semiconductor Nanocontacts: Silicon Nanowires
Physical Review Letters, 2000Silicon nanowires assembled from clusters or etched from the bulk, connected to aluminum electrodes and passivated, are studied with large-scale local-density-functional simulations. Short ( approximately 0.6 nm) wires are fully metallized by metal-induced gap states resulting in finite conductance ( approximately e(2)/h).
, Landman +3 more
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Reversible Electrowetting on Superhydrophobic Silicon Nanowires
Nano Letters, 2007This paper reports for the first time on the reversible electrowetting of liquid droplets in air and oil environments on superhydrophobic silicon nanowires (SiNWs). The silicon nanowires were grown on Si/SiO2 substrates using the vapor-liquid-solid (VLS) mechanism, electrically insulated using 300 nm SiO2, and hydrophobized by coating with a ...
Verplanck, N. +5 more
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Application of Silicon Nanowires
Current Nanoscience: Silicon Nanowires (SiNWs), a novel category of nanomaterials, exhibit several outstanding properties, including superior transistor performance, quantum tunneling effects, and remarkable electrical and optical capabilities. These properties are expected to contribute significantly to the development of future nanodevices, such as sensors and ...
Yang Feng +4 more
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