Materials Literature
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Molecular bottlebrushes with hydrophobic poly( n -butyl acrylate) or polystyrene and hydrophilic poly(di(ethylene glycol) ethyl ether acrylate)) side chains were successfully synthesized by grafting from a poly(2-(2-bromoisobutyryloxy)ethyl methacrylate) macroinitiator using iron-based atom transfer radical polymeriza…
A new method to achieve long-range orientational order in symmetric diblock copolymer nanodomains through the alignment and chaining of superparamagnetic nanoparticles in a magnetic field is investigated computationally and theoretically. The effects of nanoparticle size, volume fraction, and magnetization strength ar…
Reversal modes and magnetostatic interactions of multilayered Fe(3)O(4)/ZrO(2)/Fe(3)O(4) nanotubes consisting of a ferromagnetic internal tube, an intermediate non-magnetic spacer and an external magnetic shell are investigated as a function of their geometric parameters and compared with those produced inside the por…
Kenaf fibre reinforced polyester biocomposites fabricated by hand lay-up technique by using propionic and succinic anhydride-modified kenaf fibres. Chemical structure, mechanical, thermal and morphological properties of kenaf fibres reinforced polyester biocomposites evaluated. The Fourier transform infrared study of…
Porphyrin derivatives have applications as photoactive drugs in photodynamic therapy. However, little is known about their interactions with phospholipid membranes at the molecular level. We employed molecular dynamics simulations to model the binding between a series of cationic meso-(N-methyl-4-pyridinium)phenylporp…
Block copolymers offer an appealing alternative to current lithographic techniques with regard to fabrication of next-generation microprocessors. However, if copolymers are to be useful on an industrial manufacturing scale, they must meet or exceed lithography specifications for placement and line edge roughness (LER)…
A heterojunction photodiode was fabricated from ZnO nanowires (NWs) grown on a p-type Si (100) substrate using a hydrothermal method. Post growth hydrogen treatment was used to improve the conductivity of the ZnO NWs. The heterojunction photodiode showed diode characteristics with low reverse saturation current (5.58…
The synthesis of water-soluble quantum dots (QDs) in aqueous phase has received much attention recently. To date various kinds of QDs such as CdTe, CdSe, CdTe/CdS and CdSe/ZnS have been synthesized by aqueous methods. However, generally poor-quality QDs (photoluminescent quantum yield (PLQY) lower than 30%) are obtain…
Abstract We describe the taxonomy and species diversity of 35 taxa of the diatom genus Thalassiosira from a series of net plankton collected quarterly or monthly from eight locations off the Guangdong coastal waters in the South China Sea. Field samples and 14 cultured Thalassiosira clonal strains were studied by ligh…
Though the potassium (K) status of the soil often relies only on its exchangeable-K content, release from nonexchangeable K also contributes to plant nutrition. This process, as well as the opposite one, K fixation, are diffusion controlled and thus depend on time. This study was conducted to (i) assess the influence…
The growth of Al 2 O 3 onto Sn-doped In 2 O 3 (ITO) by atomic layer deposition (ALD) was studied in situ using X-ray photoelectron spectroscopy. Significant diffusion of oxygen from the substrate destroys the self-terminated monolayer adsorption of the metal precursor and results in a nominal initial growth per cycle…
Emerging new applications, e.g. as molecular logical devices and in superresolution imaging, have fuelled considerable interest in the design of improved fulgide photoswitches and the fundamental ultrafast processes that determine their photochemistry. This review is concerned with the basic photoswitching properties…
An air-stable, low-temperature, solution-based process for preparing CuInS(2) (CIS) superstrate solar cells using CdS-decorated ZnO nanorod (NR) arrays is reported. Efficient light harvesting and photoexcited charge transport were achieved by fabricating a ZnO NR window layer with a large p-n junction area via a hydro…
Abstract Optical and electronic properties of the SrAl 2 O 4 :Eu 2+ ‐Dy 3+ phosphor were investigated to analyze the mechanisms of its strong and long persistent luminescence. From the temperature dependence of photocurrent excitation spectra, the relative energy locations between the 5d levels of Eu 2+ in two differe…
A novel orange-yellow-emitting Ba(3)Gd(PO(4))(3):xEu(2+),yMn(2+) phosphor is prepared by high-temperature solid-state reaction. The crystal structure of Ba(3)Gd(PO(4))(3):0.005 Eu(2+),0.04 Mn(2+) is determined by Rietveld refinement analysis on powder X-ray diffraction data, which shows that the cations are disordered…
Novel, semicrystalline polyamides and copolyamides were synthesized from a new carbohydrate-based diamine, namely isoidide-2,5-dimethyleneamine (IIDMA). In combination with 1,6-hexamethylene diamine (1,6-HDA) as well as the biobased sebacic acid (SA) or brassylic acid (BrA), the desired copolyamides were obtained via…
This work reports on a study of the phonon behavior and thermal transport in bent graphene nanoribbons (GNRs). Three peculiar phenomena are observed in bent GNRs during thermal transport. First, due to the high thermal conductivity of flexural mode (ZM) phonons in GNRs, energy separation is observed between the in-pla…
The structure of the network forming glass GeO(2) is investigated by making the first application of the method of in situ neutron diffraction with isotope substitution at pressures increasing from ambient to 8 GPa. Of the various models, the experimental results are in quantitative agreement only with molecular dynam…
Abstract First‐principles calculations reveal that in divalent europium perovskites Eu M O 3 ( M = Ti, Zr, and Hf), antiferromagnetic superexchange interactions via n d states of the B‐site M cations ( n = 3, 4, and 5, respectively) are enhanced by rotations of the M O 6 octahedra. The octahedral rotations involved in…
Silver nanoclusters (AgNCs) have gained considerable attention over a wide range from chemical detection to bioimaging applications. Herein we developed a facile way to synthesize water-soluble, intense fluorescent targetable AgNCs with yellow-emission by using DNA via a chemical reduction method. The sequence of DNA…