Abstracts

Chemicals, plastics and rubber industries

Search abstracts:

Anisotropic and passivation-dependent quantum confinement effects in germanium nanowires: A comparison with silicon nanowires

Article Abstract:

A study examines electronic structures of hydrogen-passivated germanium nanowires (GeNWs) along the [100], [110], [111], and [112] directions using the density functional theory within the generalized gradient approximation. Results show that the band gaps of the fully relaxed GeNWs are all direct at the smaller sizes, while those of the wires along the [112] direction remain indirect, and that the magnitude of the band gaps of the GeNWs for a given size approximately follows the order of [E.sub.g][100] > [E.sub.g][111] > [E.sub.g][112] > [E.sub.g][110].

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Germanium, Usage, Density functionals, Density functional theory, Electron configuration, Structure

---

Surface chemistry of luminescent colloidal silicon nanoparticles

Article Abstract:

The two kinds of properties of the particles namely optical properties and amphiphilic properties that appear to be independent of each other at the first sight are discussed. High quantum yields of photoluminescence were found for both blue and red luminescent particles.

Quantum theory, Quantum mechanics, Luminescence

---

Similar abstracts:

• Abstracts: Experimental and computational studies of trialkylaluminium and alkylaluminium chloride reactions with silica
• Abstracts: Existence of a size-dependent diffusivity maximum for uncharged solutes in water and its implications. Levitation effect: Distinguishing anomalous from linear regime of guests sorbed in zeolites through the decay of intermediate scattering function and wavevector dependence of self-diffusivity
• Abstracts: Uniform electrochemical deposition of copper onto self-assembled gold nanoparticles. Reproducible patterning of single Au nanoparticles on silicon substrates by scanning probe oxidation and self-assembly
• Abstracts: Fabrication and characterization of mesoporous Co3O4 core/mesoporous silica shell nanocomposites. Heterogeneous activation of Oxone using Co3O4
• Abstracts: Preparation and surface effect analysis of trivalent europium-doped nanocrystalline La(sub 2)O(sub 2)S. Effect of OH- on the luminescent efficiency and lifetime of Tb(super 3+)-doped yttrium orthophosphate synthesized by solution precipitation

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.