Materials Literature
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A moiré pattern, which is a kind of spatial interference between two periodic patterns, is regarded as a spatial modulation of a “field.” By defining the displacement field, we reveal that moiré patterns can have a topological phase singularity, similar to a disclination in liquid crystal and, more generally, a vector…
The behavior of n-Si(111) photoanodes covered by monolayer sheets of fluorinated graphene (F-Gr) was investigated under a range of chemical and electrochemical conditions. The electrochemical behavior of n-Si/F-Gr and np(+)-Si/F-Gr photoanodes was compared to hydride-terminated n-Si (n-Si-H) and np(+)-Si-H electrodes…
Abstract Here, we report a simple, green and economic process for the synthesis of highly fluorescent carbon nanoparticles (CPs) through low‐temperature carbonization of a fruit waste, Citrus sinensis peel. This approach allows the large‐scale production of aqueous CPs dispersions without any additives and post‐treatm…
A spark plasma sintering (SPS) apparatus was used for the first time as an analytical testing tool for studying creep in ceramics at elevated temperatures. Compression creep experiments on a fine-grained (250 nm) polycrystalline magnesium aluminate spinel were successfully performed in the 1100-1200 °C temperature ran…
Graphene photo-detectors functionalized by colloidal quantum dots (cQDs) have been demonstrated to show effective photo-detection. Although the transfer of charge carriers or energy from the cQDs to graphene is not sufficiently understood, it is clear that the mechanism and efficiency of the transfer depends on the mo…
Development and high temperature testing by 14 MeV neutron irradiation of single crystal diamond detectors, Pilotti, R., Angelone, M., Pagano, G., Loreti, S., Pillon, M., Sarto, F., Marinelli, M., Milani, E., Prestopino, G., Verona, C., Verona-Rinati, G.
We report approaches to the design of covalently crosslinked and physically stable surface coatings with chemically labile and dynamic surface features based on the functionalization of azlactone-containing materials with alcohol-, thiol-, and hydrazine-based nucleophiles. Past studies demonstrate that residual azlact…
A nano self-gating diode (SGD) based on nanoscale semiconducting material is proposed, simulated, and realized on semiconducting carbon nanotubes (CNTs) through a doping-free fabrication process. The relationships between the performance and material/structural parameters of the SGD are explored through numerical simu…
The porous copolymers of glycidyl methacrylate crosslinked with trimethylolpropane trimethacrylate were prepared in the form of regular microspheres by suspension–emulsion polymerization. In order to obtain adsorbents bearing functional groups, the porous methacrylate network was modified by subsequent reaction with d…
Current trends in biomaterial designs require a detailed understanding of structure–function relationships to efficiently address specific utilities. As a prototype, spider silk has been widely studied with diversified characterization or simulation methods, exploiting the integration of experimental and modeling appr…
Structure modellingviasmall-angle X-ray scattering (SAXS) data generally requires intensive computations of scattering intensity from any given biomolecular structure, where the accurate evaluation of SAXS profiles using coarse-grained (CG) methods is vital to improve computational efficiency. To date, most CG SAXS co…
The ever increasing demand for bandwidth in wireless communication systems will inevitably lead to the extension of operating frequencies toward the terahertz (THz) band known as the 'THz gap'. Towards closing this gap, we present a multi-level amplitude shift keying (ASK) terahertz wireless communication system using…
Rotated graphene bilayers form an exotic class of nanomaterials with fascinating electronic properties governed by the rotation angle $\ensuremath{\theta}$. For large rotation angles, the electron eigenstates are restricted to one layer and the bilayer behaves like two decoupled graphene layers. At intermediate angles…
We have revisited the valence band electronic structure of NiO by means of hard x-ray photoemission spectroscopy (HAXPES) together with theoretical calculations using both the GW method and the local density approximation + dynamical mean-field theory (LDA+DMFT) approaches. The effective impurity problem in DMFT is so…
Finding alternatives to traditional organic solvents is one area in green chemistry that has generated great interest in recent years. This work provides new possibilities for the preparation of ecological oil-in-water (O/W) emulsions. Model emulsions that may be used as matrices for agrochemical formulations have bee…
The growing interest in melanin‐like materials makes a strong request for fabrication strategies, modulation methods of their morphologies and properties, and profound knowledge of their structure–property relationship. In this review, we summarize the state‐of‐the‐art modulation methods of melanin‐like materials, wit…
In recent years, multifunctional materials contained simultaneous ferroelectric and ferromagnetic ordering have been realized. Here, a real time room temperature adaptive materials system, which demonstrates an RF magnetodielectric (MD) response, i.e., CexY3-xFe5O12 (x = 0, 0.05, 0.1, 0.15, 0.2), is reported. The magn…
A matrix formalism is used to derive the analytical Green's functions describing correlations between any two atomic sites on a zigzag (ZZ) graphene nanoribbon, incorporating modified electronic hopping values between edge sites that may be distinct from the hopping between interior sites. An analysis of the poles of…
Graphene was synthesized by liquid phase exfoliation of graphite in DMF (N,N-Dimethylformamide) organic solvent. The synthesized graphene was characterized by TEM, SEM, UV-Visible and Raman spectrum. Graphene based paper electrodes were prepared by brush coating technique on A4 size paper. Four different gel electroly…
A blue-phase liquid crystal display (BPLCD) with low operating voltage and high transmittance is demonstrated by using a high dielectric material, which is used as an insulation layer or protrusion fixed on the pixel and common electrodes in in-plane switching (IPS) mode. The operating voltage is reduced to about 14 V…