The results of transient transmission studies utilizing femtosecond laser pulses on hydrogenated amorphous silicon alloys are presented. In these studies, both the pump and probe photon energies are tuned through the exponential band tail region. The responses of the di!erent alloys are similar, but the technique is able to clearly distinguish between them based on their alloy composition and b...

Related Articles Testing recent charge-on-spring type polarizable water models. I. Melting temperature and ice properties J. Chem. Phys. 137, 194102 (2012) Freezing singularities in water drops Phys. Fluids 24, 091102 (2012) Impact response and dynamic strength of partially melted aluminum alloy J. Appl. Phys. 112, 053511 (2012) Study of strain fields caused by crystallization of boron doped am...

Related Articles Testing recent charge-on-spring type polarizable water models. I. Melting temperature and ice properties J. Chem. Phys. 137, 194102 (2012) Freezing singularities in water drops Phys. Fluids 24, 091102 (2012) Impact response and dynamic strength of partially melted aluminum alloy J. Appl. Phys. 112, 053511 (2012) Study of strain fields caused by crystallization of boron doped am...

Related Articles GaAs nanowire Schottky barrier photovoltaics utilizing Au–Ga alloy catalytic tips Appl. Phys. Lett. 101, 013105 (2012) Effective work functions for the evaporated metal/organic semiconductor contacts from in-situ diode flatband potential measurements Appl. Phys. Lett. 101, 013501 (2012) Controlled formation of charge depletion zones by molecular doping in organic pin-diodes and...

Monophase thorium–zirconium hydrides (ThZr2Hx) have been fabricated starting from a metallic alloy and the hydrogen stoichiometry determined by X-ray diffraction. Incoherent Quasielastic Neutron Scattering (IQNS) on the hydrides was conducted over the temperature range 650–750 K at the Backscattering Silicon Spectrometer (BASIS) at the Spallation Neutron Source (SNS) at ORNL. The isotropic Chud...

Related Articles Advanced modeling of the effective minority carrier lifetime of passivated crystalline silicon wafers J. Appl. Phys. 112, 054508 (2012) Dielectric elastomer actuators with elastomeric electrodes Appl. Phys. Lett. 101, 091907 (2012) Effect of Pt bottom electrode texture selection on the tetragonality and physical properties of Ba0.8Sr0.2TiO3 thin films produced by pulsed laser d...

Abstract A new approach to reduce the chromium and aluminium concentrations in FeCrAl alloys without significantly impairing corrosion resistance is alloy with 1–2 wt.% silicon. This paper investigates “silicon effect” on oxidation by comparing behavior scale microstructure of two alloys, one alloyed silicon other not, dry wet air at 600 °C 800 °C. Both formed thin protective oxide scales Cr-ev...

Liquid-phase bonding is a technologically important method to fabricate high-performance metal/ceramic heterostructures used for power electronic devices. However, the atomic-scale mechanisms of how these two dissimilar crystals specifically bond at the interfaces are still not well understood. Here we analyse the atomically-resolved structure of a liquid-phase bonded heterointerface between Al...

The paper presents the research on the infl uence of melt overheating temperature on crystallization parameters and primary structure of cast AlSi17Cu5Mg (A390.0) alloy overheated to temperature: 820 °C, 880 °C, 940 °C and 1 000 °C. It was found that the degree of overheating infl uences the change of microstructure signifi cantly and morphologies of primary silicon of the castings from Al-Si a...

By combining Raman scattering from the cleaved edge and under hydrostatic pressure, we have accurately determined the tetragonal phonon deformation potentials of strained Si1−xGex alloys in the entire compositional range for the Ge-like, Si-like, and mixed Si–Ge optical modes. A known biaxial strain is induced on thin alloy layers by pseudomorphic epitaxial growth on silicon and subsequent capp...