Materials Literature
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Monolayer MoS2, MoSe2, MoTe2, WS2, WSe2, and black phosphorous field-effect transistors (FETs) operating in the low-voltage (LV) regime (0.3 V) with geometries from the 2019 and 2028 nodes of the 2013 International Technology Roadmap for Semiconductors are benchmarked along with an ultrathin-body Si FET. Current can i…
Abstract The transition metal tetra‐ and trinorbornyl bromide complexes, M(nor) 4 (M=Fe, Co, Ni) and Ni(nor) 3 Br (nor=1‐bicyclo[2.2.1]hept‐1‐yl) and their homolytic fragmentations were studied computationally using hybrid density functional theory (DFT) at the B3PW91 and B3PW91‐D3 dispersion‐corrected levels. Experim…
Inductively coupled plasma optical emission spectroscopy (ICP-OES) is a common, relatively low cost, and straightforward analytical technique for the study of trace quantities of metals in solid materials, but its applicability to nanocarbons (e.g., graphene and nanotubes) has suffered from the lack of efficient diges…
We present a theoretical analysis of unidirectional interface states which form near $p\text{\ensuremath{-}}n$ junctions in a graphene monolayer subject to a homogeneous magnetic field. The semiclassical limit of these states corresponds to trajectories propagating along the $p\text{\ensuremath{-}}n$ interface by a co…
Borondipyrromethene (BODIPY) dyes are one of the most interesting organic dyes because of their unique characteristic in capturing near-infrared (NIR) solar radiation. However, the highest reported conversion efficiency of BODIPY dyes is still far behind that of other organic dyes. Herein, we demonstrated an efficient…
Multireference electronic structure methods are used to assign ground state electronic configurations for a series of metallophthalocyanines. Ligand orbital occupancies remain constant across the period and are consistent with a formal 2– charge on the ligand. The d electron configurations of some metallophthalocyanin…
Ultralow refractive index materials (n less than 1.38 at 550 nm) are of particular interest in the context of antireflective coatings, allowing one to enhance their overall optical performance. However, application of such materials is typically limited by their mechanical properties. In this study, we explore the cha…
We generate networks and carbonization between individualized single-walled carbon nanotubes (SWCNTs) by an optimized plasmonic heating process using a halogen lamp to improve electrical properties for flow-induced energy harvesting. These properties were characterized by Raman spectra, a field-emission-scanning probe…
We demonstrate the use of a quantum transport model to study heavily graded graphene $p\text{\ensuremath{-}}n$ junctions in the quantum Hall regime. A combination of $p\text{\ensuremath{-}}n$ interface roughness and delta function disorder potential allows us to compare experimental results on different devices from t…
Hydroxyl terminated poly(styrene‐ r ‐methyl methacrylate) (P(S‐ r ‐ MMA )) random copolymers ( RCPs ), with molecular weight ( M n ) spanning from 1700 to 69 000 g mol −1 and equal styrene unit content, were grafted at different temperatures onto a silicon oxide surface and subsequently used to study the orientation o…
Single ZnO nanowires prepared by wet and dry methods are used as channels in high performance back-gated field effect transistors working in low power operation mode, with on–off ratios up to 10 5 and mobilities up to 167 cm 2 V −1 s −1 . The nanowires’ properties, generated by the growth techniques, influence the par…
Novel Sr 2– y Eu y B 2–2 x Si 2+3 x Al 2– x N 8+ x phosphors were investigated as a function of the boron and aluminum over silicon ratio and as a function of the Eu 2+ concentration. Samples were prepared via solid-state reaction synthesis by carefully controlling the synthesis conditions and composition. At high bor…
Defect luminescence has been considered to be one of the most efficient ways to resolve the problem of the recent limited supply and increased demand for rare-earth elements. So, in this work, a novel self-activated long-persistent green-yellow and yellow emitting phosphors of α-Ca 3 B 2 N 4 and β-Ca 3 B 2 N 4 has bee…
We uncover and identify the regime for a magnetically and ferroelectrically controllable negative refraction of a light-traversing multiferroic, oxide-based metastructure consisting of alternating nanoscopic ferroelectric (SrTiO 3 ) and ferromagnetic (Y 3 Fe 2 (FeO 4 ) 3, YIG) layers. We perform analytical and numeric…
From grazing-incidence x-ray diffraction measurements and density functional theory calculations, we have precisely determined the atomic positions of the Si and Ag atoms forming the $(4\ifmmode\times\else\texttimes\fi{}4)$ Si/Ag(111) silicene reconstruction. A remarkable agreement is found between the experimental st…
Plasmonic fluorescence enhancement is used to study fluorescence correlation spectroscopy (FCS) at higher concentrations than in regular diffraction-limited FCS experiments. Previous studies suffered from sticking to the substrate and were performed mainly with poorly emitting dyes. A lipid bilayer forms a passivating…
In a two-dimensional electron gas, the electron-electron interaction generally becomes stronger at lower carrier densities and renormalizes the Fermi-liquid parameters, such as the effective mass of carriers. We combine experiment and theory to study the effective masses of electrons and holes ${m}_{e}^{*}$ and ${m}_{…
The potential of nanocomposites have been drawing the intention of the researchers from energy storage to electrical insulation applications. Nanocomposites are known to improve dielectric properties, such as the increase in dielectric breakdown strength, suppressing the partial discharge (PD) as well as space charge,…
Natural polymers have greatly impacted the advancement of modern medicine. Natural polymer-based biomaterials are biodegradable. A significant advantage of natural polymers is that they can be broken down and removed from the body after they have served their function. A wide range of novel biomaterials from natural p…
Alkali metal borohydrides can reversibly store hydrogen; however, the materials display poor cyclability, oftentimes linked to the occurrence of stable closo -polyborate intermediate species. In an effort to understand the role of such intermediates on the hydrogen storage properties of metal borohydrides, several alk…