Materials Literature
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The single crystals of YAG, Cr:YAG and (Cr,Ca):YAG were grown in an optical floating zone furnace. The experimental results show that the optical bandgap of the YAG, (Cr,Ca):YAG and Cr:YAG crystals is about 6.52, 6.31 and 5.50 eV, respectively. The optical bandgap of the (Cr,Ca):YAG crystal is smaller than YAG and lar…
Azo-functionalised materials are of special interest due to their photochromic nature, i.e. reversible trans–cis isomerisation upon photoirradiation. The structure and properties of Langmuir monolayers of nonyloxyphenylazocinnamic acid (NOPACA) with and without exposure to UV-irradiation were studied. The NOPACA float…
The electrical contacts needed for conventional probing of a graphene-based device can mask the very properties to be measured. The authors demonstrate a contactless measurement scheme that capacitively couples a device to a superconducting microwave resonator. Both quantum capacitance and charge-relaxation resistance…
In this paper, we present a proof-of-concept of a new approach to achieving tailored resonant frequency temperature coefficients in dielectric meta-atoms. The technique involves introducing a thermally expanding or contracting material joining the active high permittivity dielectric absorbers. Both simulation and expe…
A stable aqueous colloidal solution of core–shell CdS–ZnS nanoparticles is obtained via the chemical condensation of carboxyl-containing diamine complexone (disodium salt of ethylenediaminetetraacetic acid). CdS nanoparticles coated with ZnS exhibit 20 times greater luminescence and more stability, compared to CdS nan…
Comparison of structural and electronic properties between pristine and N-doped titanium dioxide-(TiO2)/molybdenum disulfide (MoS2) nanocomposites and their effects on the adsorption of thiophene molecule were performed using density functional theory calculations. To correctly estimate the adsorption energies, the va…
It has recently been shown that passive lens designs can retain perfect lensing despite intrinsic loss in the comprising left-handed materials. Here we show that energy conservation is not at odds with the operation of such lossy perfect lenses: The irreversible transfer of electromagnetic power to the lossy material…
The synthesis and measurements of nanomaterials have yielded significant advances in the past decades. In the area of thermal conduction, the nanomaterials exhibit anomalous behavior such as size-dependent thermal conductivity, thermal rectification, and ultra-high thermoelectric properties. The theoretical understand…
The power of 2D: This special issue, guest edited by Liming Dai, Xinliang Feng, Zhongfan Liu, and Hua Zhang, features the various applications of two-dimensional materials for energy conversion and storage.
In this work it is reported by first time the galvanostatic electrodeposition of nanostructured ZnO films on indium tin oxide (ITO) substrates from oxygenated-neutral solution containing Zn(CH 3 COO) 2 and K(CH 3 COO) at different temperature from 50 to 70°C. Morphological, structural, UV-vis spectra, photoluminescenc…
A protective chromium coating was prepared on P110 steel by pack cementation. The corrosion behavior of the coated P110 steel in a CO 2 -saturated simulated oilfield brine was investigated by static complete immersion tests and electrochemical measurements. The capacitive loop and polarization resistance decreased wit…
The risk of large-break loss of coolant accident (LBLOCA) is that core will be exposed once the accident occurs, and may cause core damages. New phenomena may occur in LBLOCA due to passive safety injection adopted by AP1000. This paper used SCDAP/RELAP5 4.0 to build the numerical model of AP1000 and double-end guillo…
YVO4:Dy and YVO4:Dy,M (M = Mg, Ca, Sr, Ba) powders were prepared by sintering at 900°C. According to XRD patterns, all samples are well crystallized, single-phase YVO4. SEM showed that the morphology of the samples did not show apparent changes. Under 275 nm excitation, the strongest emission line is observed at 576.6…
Synthesis of morphologically well-defined crystals of metalloporphyrin by direct crystallization based on conventional anti-solvent crystallization method without using any additives has been rarely reported. Herein, we demonstrate an unconventional and additive-free synthetic method named reverse anti-solvent crystal…
Austenitic stainless steel alloys are used in different food industry applications, including the preparation and storage of acidified carbonated soft drinks. Yet, austenitic stainless steels are not inert materials in contact with these drinks, and eventual modifications of these alloys must be investigated. Three ca…
From the elastic point of view, the twist-bend nematic phase, (NTB), has a ground state characterised by a spontaneous bend with a precession of the director n along the direction of an axis t. The tilt angle θ formed between the director n and the axis t gives rise to a heliconical structure with a nanometric helical…
Abstract In this work, Eu(III)‐based coordination polymer (EuCP) nanosheets were successfully synthesized using tetrabutylammonium bromide (TBAB) as low‐temperature molten salt (LMS), terephthalic acid (PTA) and pyromellitic acid (PMA) as organic building blocks at 160 °C. X‐ray diffraction (XRD), Fourier transform in…
Nonlinear optical single crystals of L-lysine p-nitrophenolate monohydrate (LLPNP) were grown in aqueous solution by the slow evaporation solution technique (SEST). The grown crystals were subjected to powder X-ray diffraction analysis, (PXRD) and it was found that the title compound was crystallized in the orthorhomb…
The magnetic properties of a binuclear copper(II) complex {Cu 2 (μ 2 -O 2 CCH 3 ) 4 }(OCNH 2 CH 3 ) 2 have been investigated on the basis of density functional theory with the broken symmetry (BS) approach. The magnetic coupling constant J values for the investigated complex have been calculated by different methods (…
Milling processing is an important way to obtain wood–polyethylene composite (WPC) end products. In order to improve the processing efficiency and surface quality of WPC and meet the practical application requirements, this paper focussed on morphology and roughness of the WPC-milled surface and studied surface qualit…