Materials Literature
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Light-harvesting inorganic nanocrystals play an important role in emerging solar energy conversion and optoelectronic devices. We describe here a strategy for a new family of photoelectrodes with upconverting nanocrystal assemblies as the photosensitizer. The assemblies consist of oleic acid-capped cadmium selenide (C…
Recently, an anomalous generation of multiple plasmons with large spectral weight transfer in the visible to ultraviolet range (energies below the band gap) has been experimentally observed in the insulatinglike phase of oxygen-rich strontium niobium oxides (${\mathrm{SrNbO}}_{3+\ensuremath{\delta}}$). Here, we invest…
Density functional theory (DFT) is a widely used methodology for the computation of molecular and electronic structure, and we confirm that B3LYP and the high-level ab initio G3B3 method are in excellent agreement for the lowest-energy isomers of the 16 glucose epimers. Density-functional tight-binding (DFTB) is an ap…
In conventional metals, charge carriers basically move freely. In correlated electron materials, however, the electrons may become localized because of strong Coulomb interactions, resulting in an insulating state. Despite considerable progress in the last decades, elucidating the driving mechanisms that suppress meta…
The aim of this study was to achieve a fiber‐grade poly(ethylene terephthalate) (PET) with flame retardancy properties. Flame retardant copolyesters based on ethylene glycol, terephthalic acid, and 3‐(hydroxyphenyl phosphinyl) propionic acid (HPP), as a flame retardant comonomer, were synthesized in presence of antimo…
Chalcogenide semiconducting nanoparticles are promising building blocks for solution-processed fabrication of optoelectronic devices. In this work, we report a new large-scale colloidal synthesis of metastable CuInSe 2 nanoparticles with hexagonal plate-like morphology. Powder X-ray diffraction analysis of the nanopar…
Abstract The selective catalytic reduction of NO x with NH 3 (NH 3 ‐SCR) is a very effective technology to control the emission of NO x , and the thermal stability of NH 3 ‐SCR catalyst is very important for removal of NO x from diesel engines. In this work, V 2 O 5 /WO 3 –TiO 2 (VWT) and SiO 2 ‐doped V 2 O 5 /WO 3 –T…
Graphene oxide sheets were functionalized by a “click” chemistry approach which was utilized for the decoration of Cu(0) nanoparticles for sensitive colorimetric detection of Cr( vi ) ions.
Three-dimensional (3D) graphene architectures are of great interest as applications in flexible electronics and biointerfaces. In this study, we demonstrate the facile formation of predetermined 3D polymeric microstructures simply by transferring monolayer graphene. The graphene adheres to the surface of polymeric fil…
Abstract Novel reinforced cross‐linked lysozyme crystals containing homogeneous dispersions of single‐walled carbon nanotubes bundles (SWCNTs) are produced and characterized. The incorporation of SWCNTs inside lysozyme crystals gives rise to reinforced composite materials with tunable mechanical strength and electroni…
The aim of this study was preparation of Fe/Fe 2 O 3 /Fe 3 O 4 (Fe)/polypyrrole (PPy) nanocomposite using reductive method and investigation of its microwave absorbing properties using polymethylmethacrylate (PMMA) medium. Firstly, PPy was prepared by an oxidative polymerization method with Fe 3+ as a doping agent. Ne…
BACKGROUND: With the development of nanotechnology, nanocarrier has widely been applied in such fields as drug delivery, diagnostic and medical imaging and engineering in recent years. Among all of the available nanocarriers, mesoporous silica nanoparticles (MSNs) have become a hot issue because of their unique proper…
Palladium has been widely employed as a hole contact to WSe 2 and has enabled, at times, the highest WSe 2 transistor performance. However, there are orders of magnitude variation across the literature in Pd–WSe 2 contact resistance and I ON / I OFF ratios with no true understanding of how to consistently achieve high…
Abstract A family of four mononuclear DyIII β‐diketonate complexes with formulas [Dy(tmhd)3(Br2‐bpy) (1), [Dy(tmhd)3(Br‐bpy)] (2), [Dy(tmhd)3(dppz)] (3), and [Dy(tmhd)3(mcdpq)] (4) (tmhd=2,2,6,6‐tetramethyl‐3,5‐heptanedione, Br2‐bpy=5,5′‐dibromo‐2,2′‐bipyridine, Br‐bpy=5‐bromo‐2,2′‐bipyridine, dppz=dipyrido [3,2‐a:2′,…
Monoclinic aragonite (mAra) is a naturally occurring nanocrystalline precursor of metastable aragonite.
Because of their nutritional value, zinc oxide (ZnO) nanoparticles (NPs) are applied as a dietary source of zinc, by direct addition to complex, multiple-component food matrices. The thereby occurring interactions of NPs with food matrices may have biological or toxic effects. In particular, NP interactions with food…
This letter presents a novel MEMS-based thermoelectric- photoelectric power generator, which integrates a micro-scale thermoelectric generator (μ-TEG) and a solar cell on a single silicon chip by MEMS technology for the first time. To optimize the heat flux path of μ-TEG, one side of the thermocouple square array is o…
We present an unconventional yet simple and effective surface re-engineering method to hydrophilize the polydimethylsiloxane (PDMS) surface for the direct fabrication of a flexible and stretchable guided mode resonance (GMR) sensor. It enables us to directly spin coat photoresist as a planar waveguide on a PDMS substr…
More multipurpose and convenient demand driven by Radio Frequency Identification (RFID) and intelligent packaging require flexible power sources. A VO2(B)/graphene (VO2(B)/GN) core-shell composite was successfully synthesized by the hydrothermal treatment with V2O5 and graphite. The as-obtained sample was characterize…
Recent experiments about the selective coating of transition-metal oxide on Pt nanoparticles have aroused great interest in molecular catalysis for the promotion of both activity and stability. In this work, first-principles calculations combined with microkinetic methods are employed to shed light on the edge-selecti…