搜索结果: 16-30 共查到“理学 silicon”相关记录99条 . 查询时间(0.055 秒)
Characterization and Properties of Organic Silicon Modified Vegetable Oil Fatliquor
Fatliquor Leather Silicon Vegetable Oil
2011/11/23
The vegetable oil fatliquor (VF) was prepared by rapeseed oil, 1, 2-ethylenediamine and acrylic acid. The synthesis of a silicon modified vegetable oil fatliquor (SVF) was carried out using VF and pol...
Silicon dry oxidation kinetics at low temperature in the nanometric range: modeling and experiment
Silicon dry oxidation kinetics low temperature modeling experiment
2011/9/14
Kinetics of silicon dry oxidation are investigated theoretically and experimentally at low temperature in the nanometer range where the limits of the Deal and Grove model becomes critical.Based on a f...
Solid phase epitaxy amorphous silicon re-growth: some insight from empirical molecular dynamics simulation
Nucleation and growth Theory and models of film growth
2011/9/1
The modelling of interface migration and the associated diffusion mechanisms at the nanoscale level is a challenging issue. For many technological applications ranging from nanoelectronic devices to s...
We demonstrate a stable CMOS-compatible on-chip multiple-wavelength source by ltering and modulating individual lines from a frequency comb generated by a microring resonator optical parametric oscil...
Development of front-end readout electronics for silicon strip detectors
front-end readout electronics，system，ASIC， PXI-DAQ
2011/8/31
A front-end readout electronics system has been developed for silicon strip detectors. The system uses an application specific integrated circuit (ASIC) ATHED to realize multi-channel E&T measurement....
Selective tuning of high-Q silicon photonic crystal nanocavities via laser-assisted local oxidation
Local oxidation cavity resonance tuning Thermal oxidation
2011/8/29
We examine the cavity resonance tuning of high-Q silicon photonic crystal heterostructures by localized laser-assisted thermal oxidation using a 532 nm continuous wave laser focused to a 2.5 m radius...
Influence of Mutual Drag of Light and Heavy Holes on conductivity of p-Silicon and p-Germanium
Mutual Drag of Light avy Holes
2010/11/25
Conductivity of p-Si and p-Ge is considered for two band model with due regard for mutual drag of light and heavy holes. It is shown that for small and moderate temperatures this drag sig-nificantly d...
Researchers claim to have fabricated the first all-optical transistor on a silicon chip. This device allows the transmission of light emitted by one laser to be governed by the intensity of another. T...
Effect of hydrogen on the microstructure evolution of nanocrystalline silicon
Effect of hydrogen microstructure evolution of nanocrystalline silicon
2010/11/22
We investigated the effect of dissolved hydrogen on the microstructure evolution of anocrystalline silicon. Through molecular dynamics simulations we characterize the local and overall structural feat...
Ab-initio calculations for the beta-tin diamond transition in Silicon: comparing theories with experiments
Ab-initio calculations for the beta-tin diamond transition Silicon:
2010/11/19
We investigate the pressure-induced metal-insulator transition from diamond to β-tin in bulk Silicon,using quantum Monte Carlo (QMC) and density functional theory (DFT) approaches. We show
that it is...
Double quantum dot with tunable coupling in an enhancement-mode silicon metal-oxide semiconductor device with lateral geometry
Double quantum dot enhancement-mode silicon lateral geometry
2010/11/17
We present transport measurements of a tunable silicon metal-oxide-semiconductor double quantum dot device with lateral geometry. Experimentally extracted gate-to-dot capacitances show that the device...
The room-temperature longitudinal piezoresistance of n-type and p-type silicon along selected
crystal axes has been investigated under uniaxial compressive stresses up to 3 GPa. While the
conductanc...
Development of an anti-Compton veto for HPGe detectors operated in liquid argon using Silicon Photo-Multipliers
anti-Compton veto HPGe detectors liquid argon
2010/11/16
A proof of concept detector is presented for scintillation light detection in liquid argon using Silicon Photo-Multipliers. The aim of the work is to build an anti-Compton veto for germanium detector...
Despite weak spin-orbit coupling and an indirect band gap, significant optical spin orientation
is possible in silicon. We show this by performing full band-structure calculations of the phonon-assis...
The impact of spatial fluctuations in the ultra-violet background on intergalactic carbon and silicon
methods: numerical intergalactic medium quasars absorption lines
2010/11/12
Spatial inhomogeneities in the spectral shape of the ultra-violet background (UVB) at the tail-end of He II reionisation are thought to be the primary cause of the large fluctuations observed in the H...