Materials Literature
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Localized surface plasmon resonances (LSPRs) enable tailoring of the optical response of nanomaterials through their free carrier concentration, morphology, and dielectric environment. Recent efforts to expand the spectral range of usable LSPR frequencies into the infrared successfully demonstrated LSPRs in doped semi…
Two-dimensional (2D) materials such as graphene and hexagonal boron nitride (hBN) have attracted significant attention due to their remarkable properties. Numerous interesting graphene/hBN hybrid structures have been proposed but their implementation has been very limited. In this work, the synthesis of patched struct…
The production and use of engineered nanomaterials (ENMs) are increasing rapidly, and therefore, the need to assess their environmental exposure and associated risks has become increasingly important. Only a handful of studies have quantified the release and environmental concentrations of ENMs, but much work has been…
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTSurface Chemistry of Late Transition Metal OxidesJason F. Weaver*View Author Information Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States *E-mail: [email protected]. Tel. 352-392-0869. Fax. 352-392-9513.Cite this: Chem. Rev.…
We report the development of silica/polymer double-walled hybrid nanotubes, which consist of a hollow cavity, a porous silica inner wall, and a stimuli-responsive (pH, temperature, and redox) polymeric outer wall, as a novel nanocontainer system. The length, diameter, wall thickness, and aspect ratio of the hybrid nan…
The possibility to tune chemical and physical properties in nanosized materials has a strong impact on a variety of technologies, including photovoltaics. One of the prominent research areas of nanomaterials for photovoltaics involves spectral conversion. Modification of the spectrum requires down- and/or upconversion…
Hybridization produces the better: Colloidal hollow periodic mesoporous organosilica nanoparticles (HPMO NPs) with tunable compositions and highly hybridized nanostructures are successfully synthesized by a simple, easily scale-up but versatile silica-etching chemistry (alkaline or HF etching) for their applications i…
DNA nanostructures have been attractive due to their structural properties resulting in many important breakthroughs especially in controlled assemblies and many biological applications. Here, we report a unique energy storage device which is a supercapacitor that uses nanostructured DNA hydrogel (Dgel) as a template…
Gallium oxide (Ga 2 O 3 ) thin films were produced by sputter deposition by varying the substrate temperature ( T s ) in a wide range ( T s = 25–800 °C). The structural characteristics and optical properties of Ga 2 O 3 films were evaluated using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-disp…
A synergistic graphene oxide-gold nanocluster (GO-AuNC) hybrid has been constructed as an enzyme mimic that is able to show high catalytic activity over a broad pH range, especially at neutral pH. Importantly, the target-functionalized hybrid has been applied as a robust nanoprobe for selective, quantitative, and fast…
The effect of strain on the phonon modes of monolayer and few-layer MoS${}_{2}$ has been investigated by observing the strain-induced shifts of the Raman-active modes. Uniaxial strain was applied to a sample of thin-layer MoS${}_{2}$ sandwiched between two layers of optically transparent polymer. The resulting band sh…
The article deals with coordination compounds of iron(II) that may exhibit thermally induced spin transition, known as spin crossover, depending on the nature of the coordinating ligand sphere. Spin transition in such compounds also occurs under pressure and irradiation with light. The spin states involved have differ…
We propose using disorder to produce a field effect transistor (FET) in biased bilayer and trilayer graphene. Modulation of the bias voltage can produce large variations in the conductance when the effects of disorder are confined to only one of the graphene layers. This effect is based on the ability of the bias volt…
High-quality graphene polycrystalline films are directly synthesized on dielectric silicon nitride substrates by using two-stage metal-catalyst-free chemical vapor deposition. Thus large-scale electronic devices are easily fabricated on these films without complicated transfer processes and their associated problems.…
The quasi-one-dimensional (Q1D) molecular conductors (DIETSe)${}_{2}$$M$Cl${}_{4}$ [$M=\text{Fe}$, Ga] undergo a spin density wave (SDW) transition below 12 K. The SDW ground state is suppressed by applying high pressure, recovering the Q1D Fermi surface which is confirmed by the appearance of Lebed resonance in the a…
The effects of hydrogen interstitials and oxygen vacancies on the overall ferromagnetic behaviour of Co doped ZnO (ZnO:Co) have been closely examined using different density functional calculations. The results demonstrate the importance of correcting the bandgap problem of the ZnO host as well as the lack of correlat…
Alumina membrane coated activated carbon particles with core–shell structure have been synthesized by a spraying process with different layer thicknesses. The effective thermal conductivity of particle bed was determined by the hot-wire method, and the particle thermal conductivity was calculated using the model of ef…
The Monte Carlo (MC) method is applied to solve the Boltzmann transport equation for phonons in uranium dioxide single crystals, with the objective of understanding thermal transport in this material at the mesoscale. The overall solution scheme tracks the phonon density as it evolves in space and time due to phonon d…
Growth of a fully oxidized aluminum oxide layer with low surface roughness on graphene grown by chemical vapor deposition is demonstrated. This is accomplished by the deposition of a 0.2 nm thick titanium seed layer on the graphene prior to the deposition of the aluminum under ultra high vacuum conditions, which was s…
No doubt that ring spinning will continue to remain the important yarn manufacturing system for the short staple spinning. Innovation has occurred through the introduction of compact spinning, which offers superior quality and better fiber utilization. With this technology, the problematic spinning triangle has been m…