MoS2/DLC composite films were prepared by a dual-target co-sputtering technique on silicon substrate. The show smooth surface with significantly reduced cracks and columnar structures. crystal particles of the became finer after using composite, graphite-like structure carbon was incorporated into MoS2, which affected crystallization growth MoS2. hydrophobic mechanical properties thermal corrosion behavior also investigated. results that friction coefficients DLC are 0.2159, 0.0671 0.0566,...

Hollow carbon nanospheres (HCNSs) were fabricated by annealing the Cu–C core–shell nanoparticles at 1250 °C in vacuum. The as-obtained HCNSs have ultrathin shell of 1–3 nm thickness, small size about 20 diameter, high surface area 300 m2 g–1, and ultrasmall pores below 5 within C shells. exhibit excellent electrochemical performance as anode materials for lithium-ion batteries. A reversible capacity 400 mAh g–1 retention nearly 100% are achieved current density 186 mA after 100...

We derive a pulse-area theorem for cyclic three-level system, an archetypal model exploring enantioselective state transfer (ESST) in chiral molecules driven by three linearly polarized microwave pulses. By dividing the closed-loop excitation into two separate stages, we obtain both amplitude and phase conditions of control fields to generate high fidelity ESST. As proof principle, apply this cyclohexylmethanol ($\text{C}_{7}\text{H}_{14}\text{O}$), which rotational states are connected...

The characterization of magnetic memory effect is the primary task metal (MMM) technique used in quantitative evaluation, and it has been characterized by Jiles-Atherton (J-A) model recent papers. feasibility using MMM field to characterize magnetization intensity M J-A detection are discussed this paper clarify elastic stage. According analysis with results a rotating bending fatigue experiment, follows law that state approaches equilibrium under action cyclic stress. This similar what...

We propose and numerically investigate a refractive index sensor based on one-dimensional slotted photonic crystal nanobeam cavity with sidewall gratings for sensing in gaseous environment. By using the three-dimensional finite-difference time-domain method, we demonstrate that our proposed simultaneously possesses high quality factor of $ 3.71 \times {10^6} $3.71×106 sensitivity 508 nm/RIU (refractive unit) at resonant wavelength near 1583 nm, yielding detection limit as low 1.97 {10^{ -...

In this work, TiO2/Cu3N composite films were prepared by using magnetron sputtering. Results show that the optical band gap of can be effectively controlled changing preparation parameters, and is lower than TiO2 (approximately 3.0 eV). The in mainly appears as anatase phase, nano-Cu3N under condition r=1/4 promoted formation effective electron trap on surface films. terms degradation methyl orange solution, rate film higher pure film, which reach 99.2 % (using mercury lamp for 30 min)....

Co–C core–shell nanoparticles have been synthesized in large quantity (in grams) by metal-organic chemical vapor deposition with analytical cobalt (III) acetylacetonate as precursor. Extremely small an average core diameter of 3 nm and a shell thickness 1–2 nm, relatively 23 5–20 were obtained, depending on the regions. The Co nanocores are thermally stable up to 200 °C air atmosphere, do not exhibit visible structural morphological changes after exposure at room temperature for 180 d....

MoS2 films were prepared via magnetron sputtering under different deposition pressures, and the effects of pressure on crystal structure, surface morphology, optical properties resulting investigated. The results show that crystallinity first increases then decreases with increasing pressure. by is dense uniform few defects. affects grain size, band gap films. deposited at a 1 Pa revealed remarkable crystallinity, 30.35 nm 1.67 eV gap. Given large electronegativity difference between...

TiO2 possesses a wide forbidden band of about 3.2 eV, which severely limits its visible light absorption efficiency. In this work, copper nitride (Cu3N) films were prepared by magnetron sputtering at different gas flow ratios. The structure the was tested scanning electron microscope, X-ray diffractometer, and photoelectron spectroscope. Optical properties investigated UV-vis spectrophotometer fluorescence spectrometer. Results show that Cu3N crystal typical anti-ReO3 structure, ratio...

Impurities are unavoidable during the preparation of graphene samples and play an important role in graphene's electronic properties when they adsorbed on surface. In this work, we study structures transport a two-terminal zigzag nanoribbon (ZGNR) device whose scattering region is covered by various adsorbates within framework tight-binding approximation, taking into account coupling strength $\ensuremath{\gamma}$ between carbon atoms, adsorbate concentration ${n}_{i}$, on-site energy...

Lithium–sulfur battery hasreceived widespread attention because of its high energy density, low cost, environmental friendliness, and nontoxicity. However, the insulating properties elemental sulfur, huge volume changes, dissolution polysulfides in electrolytes that result shuttle effect, sulfur utilization, rate performance seriously hinder commercialization lithium–sulfur batteries. In this work, a composite material nitrogen-doped multiwalled carbon nanotubes V 2 O 5 was designed...

As FBMC system is considered as a possible candidate for 5G, the channel estimation of FBMC/OQAM becomes an important research topic recently. In this paper, we study preamble-based and modify process on basis. Typically, preamble discarded after estimation, but since estimated response will not be exactly equal to actual response, if preserved equalization performed, recovered signal different from preamble. Using difference, construct secondary formula improve performance. Simulation...