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Influence of the Current Density and Resistivity on the Optical Properties of P-Type Porous Silicon Thin Films Fabricated by the Electrochemical Anodizing Method
Porous silicon Photoluminescence Optical properties Reflectance Optical absorption
2010/9/29
Porous Silicon thin films were produced in this work by the electrochemical anodizing method. The samples were fabricated anodizing p type Si substrates with different resistivities in hydrofluoric ac...
Silicon Adsorption In Single Walled Nanotubes
Nanotube Silicon adsorption Monte Carlo simulations First principle calculation
2010/9/25
Using density functional (DF) calculations and Monte Carlo (MC) simulations we have investigated the main electronic and structural properties of silicon interacting with single walled carbon nanotube...
A Theoretical Study on Silicon and III-V Compound Nanotubes
silicon nanotube first principles calculations
2010/4/12
In this paper we present a theoretical study on single-wall silicon and III-V compound nanotubes. First principles plane wave calculations within density functional theory are used to predict energe...
Study of the Doppler Broadening of Positron Annihilation Radiation in Silicon
the Doppler Broadening Positron Annihilation Radiation Silicon
2010/10/15
We report the measurement of Doppler broadening annihilation radiation in silicon, using 22Na as a positron source, and two Ge detectors arrangement. The two-dimensional coincidence energy spectrum wa...
Siliceous sponges as a silicon sink: An overlooked aspect of the benthopelagic coupling in the marine silicon cycle
Siliceous sponges silicon sink bathypelagic coupling marine silicon cycle
2014/5/9
Our current understanding of the silicon (Si) cycle in the ocean assumes that diatoms dominate not only the uptake of silicic acid, but also the production and recycling of biogenic silica (BSi), and ...
Manufactured Silicon Diode used as an Internal Conversion Electrons Detector
Silicon Diode an Internal Conversion Electrons Detector
2010/10/25
In this work we have studied the direct detection and spectrometric capabilities for internal conversion electrons of an ion-implanted diode, developed in the framework of R&D programs at CERN, envisa...
Dynamics of silicon metabolism and silicon isotopic discrimination in a marine diatom as a function of pCO2
silicon metabolism and silicon isotopic discrimination marine diatom pCO2
2014/5/14
Opal accumulation rates in sediments have been used as a proxy for carbon flux, but there is poor understanding of the factors that regulate the Si quota of diatoms. Natural variation in silicon isoto...
Recovery of Thalassiosira weissflogii from nitrogen and silicon starvation
nitrogen silicon starvation
2014/5/14
The ecological success of marine diatoms comes despite their unusual additional requirement for silicon, a nutrient
that often limits their growth in the ocean. There may be, however, some physiologi...
Profiling of Lithium and Potassium into Silicon
Semiconductor Diffusion Sheet resistance Surface concentration
2010/4/9
The profiling of Lithium and Potassium into Silicon doped by electro deposition from molten salts (LiBr, KI) has been studied for various time periods and deposition currents. For the samples studied,...
Linear Polarization of Photons Produced by the Electron Plane Channeling in a Silicon Crystal
Linear Polarization Photons the Electron Plane a Silicon Crystal
2010/10/27
We present the results of the polarization and intensity measurements versus photon energy E
= 535 MeV for the photon beam produced by the electron plane channeling with the energies 1.2 a...
Bacterial control of silicon regeneration from diatom detritus: Significance of bacterial ectohydrolases and species identity
Bacterial control silicon regeneration diatom detritus bacterial ecto hydrolases species identity
2014/6/10
Bacteria (and possibly archaea) accelerate silica dissolution in the sea by colonizing and enzymatically degrading the organic matrix of diatom frustules. We tested whether colonizer species compositi...
Single and Double-Layer Antireflection Coatings on Silicon
Silicon Antireflection Coatings
2010/4/13
In this study, the effect of single and double-layer thin film coatings on the reflectance spectrum of silicon surfaces has been investigated. Thin film coatings have been prepared by vacuum evaporati...
Optical Transmission Measurements on Glow-Discharge Amorphous Silicon Nitride Films
A. Optical transmission B. Refractive index C. Swanepoel method D. Hydrogenated amorphous silicon nitride
2010/4/15
Hydrogenated amorphous silicon nitride films have been prepared by the glow-discharge decomposition of ammonia/silane gas mixture. From optical transmission measurements in the wavelength range from 4...
The Determination of Thermal Annealing Effect on a-Si:H Films Coated on Glass and on Single Crystalline of Silicon
Thermal Annealing Effect a-Si:H Films Silicon
2010/4/13
The aim of this study was to examine the effect of thermal annealing on hydrogenated intrinsic amorphous silicon a-Si:H films. Hydrogenated intrinsic amorphous films were seperately coated on glass an...
An Investigation of Electrical Properties of Porous Silicon
Electrical Properties Porous Silicon
2010/4/16
In this work, electrical properties of porous silicon structures, formed with electrochemical anodization in HF acid solution under two different current densities, were investigated. In these experim...