Materials Literature
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This work aims to achieve the excellent microwave absorption in layered dielectric nickelate compounds. The phase, microstructure, electromagnetic properties and microwave absorption of the Sr modified La2-xSrxNiO4±δ (x=0, 0.3, 0.5, 0.75) nickelates were investigated, determining the analysis of the role of Sr doping…
Failure of a material is an irreversible process since the material loses its original characteristics and properties. The catastrophic brittle failure under tensile stress of nanoporous gold (np-Au) with a bicontinuous open-cell structure makes impossible otherwise attractive applications. Here, we first demonstrate…
This work presented the microfluidic preparation of zeolite film in a capillary microchannel with different length-to-diameter ratios. In the quartz capillary with an inner diameter of 0.53 and 0.32 mm, Zeolite Socony Mobil-5 (ZSM-5) film was prepared by a continuous flow hydrothermal method. Considering the chemicall…
Calcium fluoride (CaF2) is deposited via vacuum thermal evaporation on borosilicate glass to produce an anti-reflection coating for use in solar modules. Macleod’s essential simulation is used to optimize the thickness of the CaF2 coating on the glass. Experimentally, a 120 ± 4 nm-thin CaF2 film on glass shows an aver…
Abstract Machine‐learning techniques are more and more often applied to the analysis of complex behaviors in materials research. Frequently used to identify fundamental behaviors within large and multidimensional datasets, these techniques are strictly based on mathematical models. Thus, without inherent physical or c…
The high brittle-to-ductile transition (BDT) temperature of conventionally produced tungsten (W), challenges the design of W-based structural components. Recent studies have demonstrated the potential of cold rolling to produce W sheets, which are ductile at room temperature and exhibit a BDT temperature of 208 K. In…
Abstract The gray medium approximation treating all phonons with an averaged and representative mean-free-path (MFP) is an often used method in analyzing ballistic-diffusive heat conduction at nanoscale. However, whether there exists a reasonable value of the average MFP which effectively represents the entire spectru…
Here we comprehensively investigate Landau levels, Hofstadter's butterfly, and transport properties of a semi-Dirac nanoribbon in a perpendicular magnetic field using a recently developed real-space implementation of the Kubo formula based on the kernel polynomial method. A Dirac ribbon is considered to compare and co…
Here, we demonstrate a novel donor-intermediate-receptor energy transfer model through a Ce 3+ → Tb 3+ → Eu 3+ scheme in a CaTbAl 3 O 7:Ce 3+,Eu 3+ nanocrystalline phosphor. A new type of CaTbAl 3 O 7 and CaTbAl 3 O 7:RE 3+ (RE 3+ = Ce 3+ and/or Eu 3+ ) nanocrystalline phosphors were prepared by a simple sol–gel metho…
Abstract The application of NIR‐II emitters for gastrointestinal (GI) tract imaging remains challenging due to fluorescence quenching in the digestive microenvironment. Herein, we report that red‐shifting of the fluorescence emission of Au nanoclusters (AuNCs) into NIR‐II region with improved quantum yields (QY) could…
Abstract Microencapsulated materials are receiving broad attention for applications as diverse as energy storage and conversion, biomedicine, self‐healing materials, and electronics. Here, a general microfluidic approach is presented to prepare phase‐change material‐infilled microcapsules with unique thermal and mecha…
Abstract Bioimaging has revolutionized medicine by providing accurate information for disease diagnosis and treatment. Nanotechnology‐based bioimaging is expected to further improve imaging sensitivity and specificity. In this context, supramolecular nanosystems based on self‐assembly of amphiphilic dendrimers for sin…
Using a lotus leaf as our model, we fabricated an extremely low surface energy micro/nanostructured coating for textiles that repel oil, water, and chemical warfare agents (CWAs) using a simple process that is suitable for large scale production. This coating, called "OmniBlock", consisted of approximately 200-nm sili…
Nowadays, Organic fiber composites are utilized in different designing applications to expand the quality, upgrade the carrying load, and reduce the product cost. Untreated banana and jute fiber are taken to develop a hybrid natural composite for the current investigation. The specimen was produced using epoxy resin-L…
Metasurfaces, the two-dimensional analogs of metamaterials, are ideal platforms for sensing molecular chirality at the nanoscale, e.g., of inclusions of natural optically active molecules, as they offer large accessible surfaces and can provide the necessary strong resonances for coupling the probing radiation with th…
This work aimed to synthesize and characterize some calcium aluminate phases via sol–gel method. These phases were produced by mixing calcium and aluminum nitrates salts [Ca(NO3)2·4(H2O) & Al(NO3)3·9(H2O)] which have been used as starting raw materials to prepare nano-oxides composite of CaO as well as Al2O3 in differ…
The impact of Li doping on the temperature-induced phase transitions in silver niobates Ag 1– x Li x NbO 3 has been investigated using a combination of high-resolution powder neutron diffraction and synchrotron X-ray diffraction. Considering both the cell metric and distortions of the NbO 6 octahedra, estimated by Rie…
There is an increasing need to control light phase with tailored precision via simple means in both fundamental science and industry. One of the best candidates to achieve this goal are electro-optical materials. In this work, a novel technique to modulate the spatial phase profile of a propagating light beam by means…
Combining the quantum optical properties of single-photon emitters with the strong near-field interactions available in nanophotonic and plasmonic systems is a powerful way of creating quantum manipulation and metrological functionalities. The ability to actively and dynamically modulate emitter-environment interactio…
Abstract In this paper, the growth of orthorhombic and monoclinic (Al x Ga1 − x )2O3 thin films on (00.1) Al2O3 by tin-assisted pulsed laser deposition is investigated as a function of oxygen pressure p(O2) and substrate temperature T g . For certain growth conditions, defined by T g ≥ 580°C and p(O2) ≤ 0.016 mbar, th…