Synthesis and characterization of taper- and rodlike Si nanowires on Si(sub x)Ge(sub 1-x) substrate

Article Abstract:

Taper- and rodlike Si nanowires (SiNWs) were synthesized successfully on Si and Si0.8Ge0.2 substrates and the growth mechanisms of taper-rodlike SiNWs were proposed to be oxide-assisted growth (OAG) and vapor-liquid-solid (VLS) growth. There was an excellent field emission and were attributed to the perfect crystalline structure and the taperlike geometry of the Si nanowires.

All Other Basic Inorganic Chemical Manufacturing, Silicon & Inorganic Compounds, Germanium, Silicon compounds, Nanotubes, Atomic properties

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Segregation and [H.sub.2] transport rate control in body-centered cubic PdCu membranes

Article Abstract:

The investigation report of the [H.sub.2] permeation of a supported 2[mu]m thick [Pd.sub.48][Cu.sub.52] within the narrow range centered around the alloy is presented. Results reveal that the activation energy and pressure dependence in the intermediate temperature range are uniform with a diffusion-limited [H.sub.2] transport.

Palladium, Analysis, Electron transport, Alloys, Chemical properties

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