Results 211 to 220 of about 101,875 (254)
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Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2001
Si/SiO2 superlattices are recently under investigation to add optical functionality to silicon based microelectronics. In such superlattices quantum-confinement should drive Si to become a good light emitter. Emission properties can be further improved and controlled by placing the emitter in optical microcavities. In this paper emission properties of (
G. Pucker, P. Bellutti, Pavesi, Lorenzo
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Si/SiO2 superlattices are recently under investigation to add optical functionality to silicon based microelectronics. In such superlattices quantum-confinement should drive Si to become a good light emitter. Emission properties can be further improved and controlled by placing the emitter in optical microcavities. In this paper emission properties of (
G. Pucker, P. Bellutti, Pavesi, Lorenzo
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Thermodynamic optimization of the systems PbO-SiO2, PbO-ZnO, ZnO-SiO2 and PbO-ZnO-SiO2
Metallurgical and Materials Transactions B, 1997Liquidus-phase equilibrium data of the present authors for the PbO-ZnO-SiO system, combined with phase equilibrium and thermodynamic data from the literature, were optimized to obtain a selfconsistent set of parameters of thermodynamic models for all phases. The modified quasichemical model was used for the liquid slag phase.
Jak, Evgueni +4 more
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Studies of SiO2 and SiSiO2 interfaces by XPS
Surface Science, 1979Abstract The method to determine thickness distribution in thin films by X-ray photoelectron spectroscopy (XPS) has been modified for the determination of the thickness distribution of thermally grown silicon oxide films and the thickness of the SiSiO2 interfacial transition layer.
Takeo Hattori, Tatsushi Nishina
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Atomic structure of SiO2 at SiO2/Si interfaces
Applied Surface Science, 2000The valence-band and O 2s core-level spectra of ultrathin (about I nm) SiO 2 layers formed in the initial stages of the oxidation of Si(100) substrates were measured by high-resolution X-ray photoelectron spectroscopy (XPS), and the energy difference between the bonding states in the valence-band and the core-level was found to be larger than the ...
K. Hirose +3 more
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Room temperature SiO2∕SiO2 covalent bonding
Applied Physics Letters, 2006Room temperature covalent bonds between bonded silicon oxide layers can be realized by forming surface and subsurface absorption layers followed by terminating outmost bonding surfaces with desired bonding groups prior to bonding. For example, by introducing fluorine into bonding oxide layers and NH2 groups onto surfaces of bonding oxide layers before ...
Q.-Y. Tong, G. Fountain, P. Enquist
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Methanation of CO in transient states over Ru/SiO2, Ni/SiO2 and Pt/SiO2
Reaction Kinetics & Catalysis Letters, 1993In CO methanation, the hydrogenation of surface carbon species are inhibited by reversibly adsorbed CO. The extent of inhibition is markedly different on the methals used.
Shin-ichiro Fujita +2 more
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Nitrogen solubility in CaO-SiO2, CaO-MgO-SiO2, and BaO-MgO-SiO2 melts
Metallurgical Transactions B, 1990Nitrogen solubility in molten CaO-SiO2, CaO-MgO-SiO2, and BaO-MgO-SiO2 silicate systems was measured as functions of nitrogen and oxygen partial pressures and composition at 1823 K. Experimental findings indicate that nitrogen exists as a free nitride ion or is associated with silicate networks, depending principally on the slag composition.
Martinez R. Eloy, Nobuo Sano
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Collection of Czechoslovak Chemical Communications, 1993
Differential enthalpies of solution of components in binary systems 2 CaO . Al2O3 . SiO2-CaO . Al2O3 . 2 SiO2, CaO . SiO2-CaO . Al2O3 . 2 SiO2 and CaO . SiO2-2 CaO . Al2O3 . SiO2 as the function of composition and temperature were determined on the base of isothermal composition dependences of enthalpies of mixing and temperature dependences of heats ...
Ladislav Kosa +4 more
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Differential enthalpies of solution of components in binary systems 2 CaO . Al2O3 . SiO2-CaO . Al2O3 . 2 SiO2, CaO . SiO2-CaO . Al2O3 . 2 SiO2 and CaO . SiO2-2 CaO . Al2O3 . SiO2 as the function of composition and temperature were determined on the base of isothermal composition dependences of enthalpies of mixing and temperature dependences of heats ...
Ladislav Kosa +4 more
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AIP Conference Proceedings, 1984
Avalanche injection techniques are extensively used to inject electrons and holes from silicon into the thin SiO2 layer of the type used in MOS transistors. This makes it possible to evaluate the electron and hole trapping kinetics in this material using only simple MOS devices.
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Avalanche injection techniques are extensively used to inject electrons and holes from silicon into the thin SiO2 layer of the type used in MOS transistors. This makes it possible to evaluate the electron and hole trapping kinetics in this material using only simple MOS devices.
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Thermochimica Acta, 2001
Abstract Molecular dynamics models of binary CaO–FeO, MgO–SiO 2 , FeO–SiO 2 , CaO–SiO 2 and ternary CaO–FeO–SiO 2 systems were constructed at 1873 K using the Born–Mayer pair potentials. The potentials included the effective dipole–dipole interactions for Ca–Fe, Mg–Si, Fe–Si and Ca–Si pairs.
D.K Belashchenko +2 more
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Abstract Molecular dynamics models of binary CaO–FeO, MgO–SiO 2 , FeO–SiO 2 , CaO–SiO 2 and ternary CaO–FeO–SiO 2 systems were constructed at 1873 K using the Born–Mayer pair potentials. The potentials included the effective dipole–dipole interactions for Ca–Fe, Mg–Si, Fe–Si and Ca–Si pairs.
D.K Belashchenko +2 more
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