Materials Literature
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Abstract We propose a multi-band infrared coherent perfect absorber where four perfect absorption peaks can be obtained for antisymmetrical inputs. The FWHM is nearly four times larger than that of a single band absorber. In addition, the absorptivity of each peak can be independently tuned by phase modulation. Since…
Abstract With increasing demand of high‐temperature piezoelectric devices and growing concern over environment protection, a feasible reduction in lead from lead‐based high Curie temperature piezoelectric materials are desperately needed. Herein, a new system of lead‐reduced Bi(Ni 2/3 Ta 1/3 )O 3 ‐PbTiO 3 (BNT‐PT) fer…
The present work reports the plasma post treatment (ppt) process that instigates the evolution of granular structure of nanocrystalline diamond (NCD), consequently conducing the enhancement of the electron field emission (EFE) properties. The NCD films contain uniform and nanosized diamond grains (∼20 nm) with negligi…
Abstract A unique amalgam of fascinating potentials enabled the usage of phase change materials in rewritable optical and electrical storage technology. Furthermore, the identification of stoichiometric tuning of disorder in these materials opened up new pathways for the selection of materials for multi-bit data stora…
Water dispersion remains a technical challenge for effective applications of graphene. In this paper, graphene nanosheets were successfully produced by directly exfoliating expanded graphite in water in the presence of zwitterionic polymeric dispersant, succinic anhydride-functionalized polyethylenimine (PEI-SA). The…
A chiral metastructure composed of spatially separated double semi-periodic helices is proposed and investigated theoretically and experimentally in this Letter. Chirality-dependent electromagnetically induced transparency (EIT) and a slow light effect in the microwave region are observed from a numerical parameter st…
Abstract A double focusing ICP-MS with pulsed laser deposition (PLD) of thin films as sampling tool has been used in simulated spent fuels for a quick measurement on burn-up of nuclear reactor fuels by measuring the atom ratio of U (representing total heavy elements of mass >225) to selected lanthanide fission moni…
Two-dimensional nanomaterials have attracted much interest for their anisotropic structures and emergent properties. Whereas a variety of inorganic nanosheets are prepared by exfoliation, design and synthetic strategies of organic nanosheets are still developing. Here we report on crystal-controlled synthesis of condu…
In attempting to extend the utility of liquid crystals (LCs) in optics, the authors show that the orientation of the electric-field-induced convection patterns of a cholesteric LC can be modified via ultraviolet (UV) irradiation. This tunability is due to a photosensitive chiral dopant, which can change its molecular…
Assembling metallic nanoparticles and trapping target molecules within the probe volume of the incident light are important in plasmonic detection. Porous solid structures with three-dimensionally integrated metal nanoparticles would be very beneficial in achieving these objectives. Currently, porous inorganic oxides…
Nanocrystalline samples of Mg-Fe-H were synthesized by mixing of MgH2 and Fe in a 2:1 molar ratio by hand grinding (MIX) or by reactive ball milling (RBM) in a high-pressure vial. Hydrogenation procedures were performed at various temperatures in order to promote the full conversion to Mg2FeH6. Pure Mg2FeH6 was obtain…
A technique for tuning interparticle distance in plasmonic gold nanoparticle (AuNP) assemblies has shown great potential for the development of optoelectronic nanodevices. However, it still remains a challenge to reversibly alter the distance in a facile manner. DNA-templated AuNP assemblies are among the mostly inves…
Theoretical investigations are carried out on the recently synthesized one-dimensional nanowires made of atomic sulfur chains encapsulated in carbon nanotubes (called S@CNTs). Special attention is paid to stability, electronic property and transport properties of these combined nanowires. It is found that the encapsul…
The absence of a realistic polarization screening scenario at the pivotal ferroelectric-metal interface impedes the widespread application of low-dimensional ferroelectric heterostructures. Employing quantitative atom-resolved (scanning) transmission electron microscopy and first-principles calculations, we report tha…
The use of manufactured nanomaterials is rapidly increasing, while our understanding of the consequences of releasing these materials into the environment is still limited and many questions remain, for example, how do nanoparticles affect living organisms in the wild? How do organisms adapt and protect themselves fro…
Phase change memory (PCM) is an important element in the development and realization of new forms of brain-like computing. In this article, a three-dimensional finite element method simulation is carried out to study the temperature profiles within PCM cells for a better understanding of switching operations. On the b…
A poly(oxanorbornene)-based polyzwitterion with primary ammonium and carboxylate groups (PZI) has been reported previously as the first simultaneously antimicrobial and protein-repellent polyzwitterion. Here, additional physical and biological properties of three poly(oxanorbornene)-based polyzwitterions with differen…
Purpose Dref-3 friction spun core yarns produced using staple fibre yarn as the core, e.g. Jute core yarn wrapped with cotton fibre, have poorer mechanical properties compared to the core yarn itself. The purpose of this study was to understand the structure of such yarns, that will lead to the optimization of fibre,…
Crystal morphology is one of the key crystallographic characteristics that governs the macroscopic properties of crystalline materials. The identification of crystal faces, or face indexing, is an important technique that is used to get information regarding a crystal's morphology. However, it is mainly limited to sin…
In this paper, multiferroic heterostructures have been prepared by growing MnZn ferrite films on ferroelectric single substrates using pulsed laser deposition technology. An enhanced magnetoelectric coupling has been achieved at the critical two-magnon scattering (TMS) angles, where the ferromagnetic resonance field s…