Materials Literature
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We propose a method to realize ultra-broadband perfect absorption by using multiple slabs of asymmetric hyperbolic metamaterial (AHM) made of doped silicon nanowire arrays. Our numerical results show that the absorptance of the structure is greater than 0.99 in the wavelength range from to for an incident transverse m…
Catalytic total oxidation is an effective technique for the treatment of industrial VOCs principally resulting from industrial processes using solvents, and usually containing mono-aromatics (BTEX) and oxygenated compounds (acetone, ethanol, butanone). The catalytic total oxidation of VOCs on noble metal materials is…
Abstract Ultra‐long cycling stability is essential for conducting polymers (CPs) in the practical application of organic electronics. However, CPs usually exhibit poor cycling stability and fragile mechanical properties. Herein, through two alkyl‐bridged monomers, freestanding, flexible conducting P(EDOT‐ co ‐BEDTH) f…
Nitrile butadiene rubber (NBR) is widely used in the production of oil and fuel‐resistant rubber parts. Poly(p‐phenyleneterephalamide) (PPTA) pulp is used as a reinforcing fabric in NBR composites to improve its mechanical properties despite the weak bonding between NBR and PPTA pulp. In this work, PPTA pulp was modif…
The effects of gamma irradiation on hydrothermally synthesized BaTiO 3 nanoparticles have been investigated. Gamma irradiation is carried out at room temperature from 0, 50, 100, 150, 200 kGy to maximum dosage up to 250 kGy with 60 Co source. Prepared BaTiO 3 nanoparticles are investigated using line profile analysis…
A novel mechanochemical method was firstly developed to synthesize carbon nanodots (CNDs) or carbon nano-onions (CNOs) through high-pressure homogenization of cellulose powders as naturally abundant resource depending on the treatment times. While CNDs (less than 5 nm in size) showed spherical and amorphous morphology…
Purpose This paper aims to investigate the effect of varying Wt.% (0-3 per cent) of graphite as a solid lubricant on the tribological properties of Fe-Cu-Sn alloy. Design/methodology/approach Powder metallurgy technique is used for the fabrication of Fe-Cu-Sn alloy with varying Wt.% of graphite. The tribological tests…
Goos-Hänchen (GH) effects at normal incidence are investigated for metamaterials consisting of an array of ferrite rods. A new effective-medium approach is presented and applied to retrieve the effective parameters of the magneto-optical (MO) metamaterials based on a transformation method. Giant normal-incidence Goos-…
Abstract The exigency of semiconductor and super capacitor tungsten oxide nanoparticles (WO 3 NPs) is increasing in various sectors. However, limited information on their toxicity and biological interactions are available. Hence, we explored the underlying mechanisms of toxicity induced by WO 3 NPs and their micropart…
The magnetism sources and magnetic mechanism of Ni-doped ZnO remain unknown to date. In this study, the plane-wave ultrasoft pseudopotential technology of generalized gradient approximation +U based on spin-density-functional theory was used to investigate the magnetism sources and magnetic mechanism of Ni-doped ZnO.…
The aim of the paper is to study and determine the effect of voltage increasing from 500 up to 650 VDC on chemical and electrochemical properties of the obtained porous coatings with plasma electrolytic oxidation (PEO) processes, known also as micro arc oxidation (MAO). In the present paper, the chemical and electroch…
The crystallisation behaviour of calcium carbonate phases in the system Ca 2 + -Co 2 + -CO 3 2 − -H 2 O was examined in batch reactors. Experiments with different initial ratios of Co 2+ /Ca 2+ (from 0 to 1.0) in the aqueous solution were performed to examine precipitation and mineral transformations under ambient con…
High Resolution Image Download MS PowerPoint Slide The range of applications of diverse graphene-based devices could be limited by insufficient surface reactivity, unsatisfied shaping, or null energy gap of graphene. Engineering the graphene structure by laser techniques can adjust the transport properties and the sur…
Electronic interactions in low-dimensional nanomaterial heterostructures can lead to novel optical responses arising from exciton delocalization over the constituent materials. Similar phenomena have been suggested to arise between closely interacting semiconducting carbon nanotubes of identical structure. Such behavi…
The chalcogenide spinel CdCr 2 S 4 is a well-established ferromagnetic semiconductor that exhibits unique properties and is a promising candidate for spintronic applications. With band gap in the visible wavelength region, CdCr 2 S 4 nanocrystals offer the exciting possibility of tailoring both the optical and magneti…
Abstract High index dielectric nanoparticles and metasurfaces have been proposed for many different applications, including light harvesting, sensing, and metalenses. However, widespread utilization in practice also requires large‐scale fabrication methods able to produce homogeneous structures with engineered optical…
Lenses based on the Pancharatnam phase have the advantage of being thin and inexpensive. Unfortunately, their optical effect is strongly wavelength dependent, and their applications generally are limited by the requirement of a monochromatic source. However, low-power lenses based on the Pancharatnam phase can be cons…
For the first time, a complete thermoelectric characterization of PEDOT:PSS thin films is performed with a novel lab‐on‐a‐chip measurement platform, which Is developed for the nearly simultaneous in‐plane ZT characterization. The electrical conductivity, the Seebeck coefficient, the thermal conductivity, and consequen…
The electronic and magnetic properties of a set of mononuclear terbium(III) and dysprosium(III) complexes with two tetradentate 1-hydroxy-pyridin-2-one (1,2-HOPO) ligands are reported. Two primary coordination geometries are observed, depending on the length of the linker between the 1,2-HOPO donor moieties and the re…
Polycrystalline lead sulphide (PbS) thin films were grown on glass substrates by chemical bath deposition route using ethanolamine (ETA) as a complexing agent. The effects of ETA molar concentration on the structural, morphological, electrical and optical properties of lead sulphide thin films were thoroughly studied.…