Phosphorus δ-doped silicon: mixed-atom pseudopotentials and dopant disorder effects.

Summary of "Phosphorus δ-doped silicon: mixed-atom pseudopotentials and dopant disorder effects."

Within a full density functional theory framework we calculate the band structure and doping potential for phosphorus δ-doped silicon. We compare two different representations of the dopant plane; pseudo-atoms in which the nuclear charge is fractional between silicon and phosphorus, and explicit arrangements employing distinct silicon and phosphorus atoms. While the pseudo-atom approach offers several computational advantages, the explicit model calculations differ in a number of key points, including the valley splitting, the Fermi level and the width of the doping potential. These findings have implications for parameters used in device modelling.


Nanochemistry Research Institute, Curtin University, Perth, WA, Australia.

Journal Details

This article was published in the following journal.

Name: Nanotechnology
ISSN: 1361-6528
Pages: 065701


DeepDyve research library

PubMed Articles [9153 Associated PubMed Articles listed on BioPortfolio]

Plasmonic Properties of Silicon Nanocrystals Doped with Boron and Phosphorus.

Degenerately doped silicon nanocrystals are appealing plasmonic materials due to silicon's low cost and low toxicity. While surface plasmonic resonances of boron-doped and phosphorus-doped silicon nan...

Solution Synthesis and Optical Properties of Transition-Metal-Doped Silicon Nanocrystals.

A new synthetic method was developed to produce a range of transition-metal (Mn, Ni, and Cu) doped silicon nanocrystals (Si NCs). The synthesis produces monodisperse undoped and doped Si NCs with comp...

Effects of single atom doping on the ultrafast electron dynamics of M1Au24(SR)18 (M = Pd, Pt) nanoclusters.

Atomically precise, doped metal clusters are receiving wide research interest due to their synergistic properties dependent on the metal composition. To understand the electronic properties of doped c...

Deionization of dopants in silicon nanofilms even with donor concentration of greater than 10(19) cm(-3).

Understanding the dopant properties in heavily doped nanoscale semiconductors is essential to design nanoscale devices. We report the deionization or finite ionization energy of dopants in silicon (Si...

Doping silicon nanocrystals and quantum dots.

The ability to incorporate a dopant element into silicon nanocrystals (NC) and quantum dots (QD) is one of the key technical challenges for the use of these materials in a number of optoelectronic app...

Clinical Trials [2742 Associated Clinical Trials listed on BioPortfolio]

Efficacy Study of Two Silicon-based Products to Treat Scars

This study aims to determine if a silicon-based gel and a silicon-based aerosol are effective in the treatment of postoperative scars.

Displacement Between PVC and Silicon DLT

The purpose of this study is to compare difference of displacement between Polyvinyl Chloride(PVC) and Silicon double-lumen endobronchial tubes(DLTs) during changing position from supine t...

Effects of Naturally Silicon-Rich Water on Bone Metabolism in Women

The aim of this research study is to determine by laboratory analyses the effects of drinking silicon-rich water on bone health. This will be determined from blood and urine samples from ...

Phosphorus 32 in Treating Patients With Glioblastoma Multiforme

RATIONALE: Radioactive drugs such as phosphorus 32 may be able to kill tumor cells. PURPOSE: This phase I trial is studying the side effects and best dose of phosphorus 32 in treating pat...

Phosphate Intake's Effect on the Skeletal System - Pilot

The purpose of this study is to determine the effects of different amounts of phosphorus in the diet on hormones that control phosphorus and bone health both in men who are healthy and in ...

Medical and Biotech [MESH] Definitions

Compounds similar to hydrocarbons in which a tetravalent silicon atom replaces the carbon atom. They are very reactive, ignite in air, and form useful derivatives.

Widely distributed enzymes that carry out oxidation-reduction reactions in which one atom of the oxygen molecule is incorporated into the organic substrate; the other oxygen atom is reduced and combined with hydrogen ions to form water. They are also known as monooxygenases or hydroxylases. These reactions require two substrates as reductants for each of the two oxygen atoms. There are different classes of monooxygenases depending on the type of hydrogen-providing cosubstrate (COENZYMES) required in the mixed-function oxidation.

Stable phosphorus atoms that have the same atomic number as the element phosphorus, but differ in atomic weight. P-31 is a stable phosphorus isotope.

A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight 28.09.

Phosphorus used in foods or obtained from food. This element is a major intracellular component which plays an important role in many biochemical pathways relating to normal physiological functions. High concentrations of dietary phosphorus can cause nephrocalcinosis which is associated with impaired kidney function. Low concentrations of dietary phosphorus cause an increase in calcitriol in the blood and osteoporosis.

Quick Search

DeepDyve research library

Searches Linking to this Article