Materials Literature
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Within the framework of a semi-classical three-valley Monte Carlo electron transport simulation approach, we analyze the steady-state and transient aspects of the electron transport within bulk zinc-blende indium nitride, with a focus on the response to variations in the crystal temperature and the doping concentratio…
In many technological applications the mankind mimics the nature. One of the excellent examples is photosynthesis. The knowledge of the natural photosynthesis mechanisms is extremely useful in understanding of molecular processes occurring in photovoltaics.In this review article the photophysical fundamental aspects o…
The paper presents the results of tests on the spheroidising treatment of vanadium carbides VC done with magnesium master alloy and RE. The conducted metallographic studies have shown that introducing the magnesium master alloy to an Fe–C–V system of eutectic composition causes the crystallisation of spheroidal carbid…
Three immobilization strategies of cryptophane derivatives onto core–shell γ-Fe 2 O 3 /silica magnetic nanoparticles (MNPs) are reported. Immobilization of a cryptophane bearing five methoxy substituents and an alkanethiol chain, 1, was performed onto MNPs coated with a gold nanoshell. Likewise, immobilization of a cr…
Porous silicon (pSi) exhibits strong, visible photoluminescence (PL) at room temperature. To stabilize the pSi PL and simultaneously impart chemical functionality we oxidize pSi (ox-pSi) and then contact pin-print organically modified silanes onto the ox-pSi surface. This strategy allows rapid microarray production fo…
The dynamics of evaporation of water molecules from a single-walled carbon nanotube were investigated by molecular dynamics simulations. A single-barrier macro-statistical model was proposed to account for the interactions between water molecules and the single-walled carbon nanotube. Besides, the study found that the…
The electrons in graphene exhibit unusual behaviours, which can be described by massless Dirac quasiparticles. Understanding electron scattering in graphene has been of significant importance for its future application in electronic devices because electron scattering determines electrical properties such as resistivi…
This paper proposes a plantwide control structure and a model predictive control (MPC) scheme for the effective separation of off-gas from a polysilicon plant with periodic disturbances in the feed. The target process studied in this work produces 10 000 MT of polysilicon per year with 28 chemical vapor deposition (CV…
The characteristics of the near-ultraviolet (NUV) light-emitting diodes (LEDs) with wide (14-nm-thick) and narrow (2-nm-thick) wells under the situations of different numbers of wells and degree of polarization are systematically investigated. The simulation results show that the Auger recombination can be efficiently…
We have studied the transport of light through phosphor diffuser plates that are used in commercial solid-state lighting modules (Fortimo). These polymer plates contain YAG:Ce+3 phosphor particles that both elastically scatter and Stokes shift light in the visible wavelength range (400–700 nm). We excite the phosphor…
Two-dimensional phase-field simulations of void swelling in the Austenitic stainless steel were performed for irradiated materials. A numerical model was established for void swelling with an implementation of the elasticity effect, and we examined the roles of the applied stress and grain boundary sink strength and F…
In L10 (fct)-FePt thin films, both tuning Fe and Pt concentrations and substitution with third-metal were studied for magnetic characteristic optimization. We investigated single-crystalline FePt-X (X = Mn, Ni, Cu) thin films grown epitaxially on MgO(001) substrates at a substrate temperature of 350 °C by changing Fe,…
Supramolecular polymers are polymers in which the individual subunits self-assemble via noncovalent and reversible bonds. An important axis of control for systems of mixed subunit composition is the order in which the subunit types assemble. Existing ordering techniques, which rely on pairwise interactions through the…
The OH-dipole in the mineral zoisite has been a topic of discussion regarding its general orientation and vibrational modes. We present new polarized single-crystal Raman and infrared spectra and v ...
The topological charge of an electromagnetic vortex beam depends on its wavefront helicity. For mixed vortex beams composed of several different coaxial vortices, it is significant to investigate the local topological charges. Fourier transform based methods are restrained by the uncertainty principle and cannot achie…
Four steels containing Si + Al = 2 wt-% were investigated in this study. Three mixed microstructures, namely, bainite + martensite + retained austenite (MB+Ar), martensite + retained austenite (M+Ar) and low-temperature bainite + retained austenite (LB+Ar) were obtained. Wear resistance was determined by dry sliding f…
To investigate the influence of pH on the size and distribution of silver nanoparticles (Ag-NPs) as well as the antibacterial activity and catalytic performance of rice straw/silver nanocomposites (RS/Ag-NCs), Ag-NPs were synthesized on the surface of rice straw (RS) with various percentages of Ag-NPs (1.0, 5.0, 10.0,…
The behavior of Hafnium di-boride (HfB2) under neutron irradiation has been simulated in a wide range of energy from 0.025 eV up to 14 MeV. The simulation and the analysis have been carried out using Geant4 and its related database. From the radiation shielding perspective, it was observed that, under thermal neutron…
In this work we propose a new approach to recovering thermoelectricity to improving the efficiency of a photovoltaic (PV) generator under the high temperature as the desert weather. The proposed system composed on two parts, the first is the thermo generator, when is used for a thermo energy harvesting from the PV tem…
The static and dynamic magnetic properties of cerium (Ce) doped yttrium iron garnet CexY3−xFe5O12 (x=0, 0.05, 0.1, 0.15, 0.2) ferrites (YIG) have been reported in this work. The ferrites were fabricated by the traditional solid-state reaction method. All ferrite samples reveal pure garnet structure identified by x-ray…