Materials Literature
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The surface interactions between xanthene (XN) dyes, including rhodamine B, rhodamine 3B, rhodamine 19, rhodamine 6G, rhodamine 110, and rhodamine 123, and tungsten(VI) oxide (WO 3 ) colloid particles were investigated. These XN dyes were strongly adsorbed as a monolayer onto the WO 3 surface via the electrostatic int…
The industrial need for high‐throughput and low‐cost ZnO deposition processes has triggered the development of atmospheric vapor‐phase deposition techniques which can be easily applied to continuous, in‐line manufacturing. While atmospheric CVD is a mature technology, new processes for the growth of transparent conduc…
A series of water-bridged dinickel complexes of the general formula [Ni2(μ2-OH2)(μ2-O2C(t)Bu)2(O2C(t)Bu)2(L)(L')] (L = HO2C(t)Bu, L' = HO2C(t)Bu (1), pyridine (2), 3-methylpyridine (4); L = L' = pyridine (3), 3-methylpyridine (5)) has been synthesized and structurally characterized by X-ray crystallography. The magnet…
Electron transport properties of an azulene-like dipole molecule anchored with carbon atomic chains sandwiched between two graphene nanoribbon (GNR) electrodes are theoretically investigated at the ab initio level. The molecular junctions are constructed with a strategy of modulating symmetry of Bloch wave functions.…
Single-wavelength anomalous dispersion of S atoms (S-SAD) is an elegant phasing method to determine crystal structures that does not require heavy-atom incorporation or selenomethionine derivatization. Nevertheless, this technique has been limited by the paucity of the signal at the usual X-ray wavelengths, requiring…
ABSTRACT In this article, we report on the pyrolysis of polypropylene (PP) and high‐density polyethylene (HDPE) in the absence and presence of plain and metal‐oxide‐impregnated bentonite clays [BCs; acid‐washed bentonite clay (AWBC), Zn/AWBC, Ni/AWBC, Co/AWBC, Fe/AWBC, and Mn/AWBC] into useful products. Thermal and ca…
The present work was focused on isolating a bacterial strain of Pseudomonas sp. with the ability to synthesise AgNPs rapidly. A strain of Pseudomonas aeruginosa designated JO was found to be a potential candidate for rapid synthesis of AgNPs with a synthesis time of 4h in light, at room temperature which is a shorter…
Structural evolution of poly( l -lactide) during cold-crystallization at 80 °C was examined via simultaneous small/wide-angle X-ray scattering (SAXS/WAXS), Fourier-transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC). The incipient α′ crystals of loosely packed 10 7 helices, formed at t…
We report the synthesis and basic photophysical characterization of strongly conjugated hydroporphyrin (chlorin and bacteriochlorin) dyads. Hydroporphyrins are connected at their respective 13 (β) or 15 (meso) positions by ethynyl or butadiynyl linkers. Synthesis entails a series of palladium-catalyzed reactions, star…
This article presents a simple and effective method of functionalizing hydrogen‐terminated silicon (Si) nanocrystals (NCs) to form a high‐quality colloidal Si NC ink with short ligands that allow charge transport in nanocrystal solid films. Si NCs fabricated by laser‐pyrolysis and acid etching are passivated with ally…
The super-low friction mechanism of fluorine-terminated diamond-like carbon (F-terminated DLC) is investigated by using our tight-binding quantum molecular dynamics code and compared with that of hydrogen-terminated DLC (H-terminated DLC). Under a contact pressure of 1 GPa, F- and H-terminated DLC show smooth sliding…
We report experimental evidence of the formation by in situ electron-irradiation of single-walled carbon nanotubes (C-NT) confined within boron nitride nanotubes (BN-NT). The electron radiation stemming from the microscope supplies the energy required by the amorphous carbonaceous structures to crystallize in a tubula…
Microbial infections due to biofilm formation on medical implants are serious complications arising after surgery which can be prevented by using antimicrobial coatings on biomaterial surfaces. We developed a simple, rapid and green chemistry approach for synthesis of silver glyconanoparticles (AgNPs) using Kocuran, a…
We demonstrate surface emitting distributed feedback (DFB) lasers across the red, green, and blue from densely packed colloidal quantum dot (CQD) films. The solid CQD films were deposited on periodic grating patterns to enable 2nd-order DFB lasing action at mere 120, 280, and 330 μJ/cm2 of optical pumping energy densi…
Pure and Ni doped ZnO thin films have been grown on a glass substrate with the sol–gel spin coating technique. The structural, morphological and optical features of ZnO thin films were examined as a function of Ni doping concentration. According to the x-ray diffraction (XRD) patterns, all films exhibited hexagonal wu…
In this work, one-dimensional CoMoO4·0.9H2O nanorods grown on reduced graphene oxide hybrid composites (CoMoO4·0.9H2O–rGO) with good electrochemical properties have been synthesized by a simple and environmentally friendly hydrothermal synthesis procedure. The conductive graphene not only improves the electron conduct…
Graphene quantum dots (GQDs) have fascinating photoluminescence (PL) properties with promising applications in bioimaging, fluorescent sensing and the photoelectrics field. In this work, PL properties of GQDs obtained from different carbonaceous precursors including carbon fibers, graphite powder, graphene oxide (GO)…
Various metal (Ag, Au, and Pt)@thiol-functionalized silica (SiO2-SH) nanoparticles (NPs) are successfully prepared at room temperature by a facile, efficient, functional, universal and scalable coating process in alcohol-free aqueous solution using pre-hydrolyzed 3-(mercaptopropyl)trimethoxysilane (MPTMS). The control…
Multicolour emitting Gd2O3:Dy3+ phosphor is prepared by citrate based sol–gel method as a function of annealing temperature of the sample and its emission property dependence with lattice defects is elaborated. The annealed phosphors are characterized by X-ray powder diffraction (XRD), Raman spectroscopy, diffuse refl…
The valence-tautomeric six-coordinate complex [Co(tbdiox)2(4-papy)2] (1; tbdiox = redox-active 3,5-di-tert-butyl-o-dioxolene, 4-papy = 4-phenylazopyridine) was synthesized and its electronic structure examined. Whereas 1 shows regular thermally driven valence tautomerism in the solid state, it partially dissociates in…