Materials Literature
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Advantages of Whole Powder Pattern Modelling against conventional Line Profile Analysis methods are briefly reviewed, and a specific example is discussed on the possible ambiguity in the interpretation of the Williamson-Hall plot for polydisperse systems. Advancements in WPPM concerning dislocation line broadening are…
The photoinduced effect on carrier transport properties has been investigated in the La 0.7 Sr 0.3 MnO 3 /Si heterostructure prepared by the pulsed laser deposition method. A giant photoinduced relative change in the resistance of about 6783% in the current-perpendicular-to-plane (CPP) geometry of the heterostructure…
Compact spinning is a new version of ring spinning and the most distinct features of these yarns are their high strength and elongation values and low hairiness. In this study, we attempted to find the differences between compact and conventional ring knitted fabrics. One hundred % cotton yarns, produced from the same…
Abstract The face growth rate and critical supersaturation of {100} face were in situ measured using the laser‐polarization‐interference technique in the presence of potassium pyrophosphate, trimetric sodium phosphate and sodium hexametaphosphate impurities. The polyphosphate impurities inhibit the growth rate of pris…
The β″-(BEDT-TTF) 4 A I [M III (C 2 O 4 ) 3 ] · G(A I =NH + 4 , H 3 O + , K + , Rb + ; M III =Fe, Cr; G = “guest” solvent molecule) family of layered molecular conductors with magnetic metal oxalate anions exhibits a pronounced dependence of the conducting properties on the type of neutral solvent molecules introduced…
Hollow nanostructures have important applications in the field of gas adsorption, separation and storage due to their large specific surface areas. Silicon carbide nanotubes (SiCNTs) are one kind of such materials. In this paper, SiCNTs were synthesized from multiwalled carbon nanotubes (MWCNTs) via chemical vapor rea…
Polyaniline/NiFe2O4 nanocomposite was synthesized by a simple, general, and inexpensive one‐step in situ polymerization method in w/o microemulsion. The structural, morphological, and magnetic properties of the products were characterized by X‐ray diffraction (XRD), Fourier transform infrared (FTIR) spectra, scanning…
We investigate the luminescence properties of Bi 3+ and RE 3+ (RE = Tb or Eu) in a Y 3 Ga 5 O 12 (YGG) host system. The additional doping of Bi 3+ can enhance the luminescence of Tb 3+ or Eu 3+ in this host. Energy transfer from Bi 3+ to Tb 3+ and Eu 3+ is observed and the mechanism of energy transfer is investigated.…
One oxyfluorotitanophosphate cluster compound, K16[Ti10P4O16F44], has been synthesized and structurally characterized. As far as we know, it is the first cluster compound for titanophosphate.
Doping with donor and acceptor impurities is an effective way to control light emission originated from quantum-size effect in Si nanocrystals. Combined measurements of photoluminescence intensity and kinetics give valuable information on mechanisms of the doping influence. Phosphorus, boron, and nitrogen were introdu…
Abstract A study is presented on the morphological effects caused by the nanoclay organic modifier and the nanoclay concentration. This was made under previously determined compatibility conditions of heterophasic polypropylene copolymers (PP‐EP)/poly(ethylene vinyl acetate) (EVA)/organoclay nanocomposites. The nanoco…
We study thermoelectric power under strong magnetic field (TPM) in carbon nanotubes (CNTs) and quantum wires (QWs) of nonlinear optical, optoelectronic, and related materials. The corresponding results for QWs of III-V, ternary, and quaternary compounds form a special case of our generalized analysis. The TPM has also…
Bilayered ferroelectric thin films consisting of Pb(Zr0.52Ti0.48)O3 (PZT) and (Bi3.15Nd0.85)Ti3O12 (BNT) layers have been successfully fabricated via a synthesis route of combining sol-gel and rf sputtering. Both ferroelectric layers are well retained in both PZT/BNT and BNT/PZT bilayered films as suggested by x-ray d…
To obtain high transmittance and low resistivity ZnO transparent conductive thin films, a series of ZnO ceramic targets (ZnO:Al, ZnO:(Al, Dy), ZnO:(Al, Gd), ZnO:(Al, Zr), ZnO:(Al, Nb), and ZnO:(Al, W)) were fabricated and used to deposit thin films onto glass substrates by radio frequency (RF) magnetron sputtering. X-…
Abstract This work presents a novel study on electrochemical codeposition of Mg–Li alloys on molybdenum in KCl–LiCl (50:50 wt %) melts containing different concentrations MgCl2 at 943 K. Cyclic voltammograms showed that the underpotential deposition (UPD) of lithium on pre-deposited magnesium leads to the formation of…
In the Cu-Fe-sulphide mining district of Servette-Chuc (Saint-Marcel, Aosta Valley, Italy), a streambed called Eve Verda and covered with a colloidal blue-green precipitate has been known since the 18th century. X-ray and chemical analyses reveal that the precipitate is a mixture of a nanocrystalline Cu-Al-sulphate hy…
Surface-enhanced Raman spectroscopy is used to investigate the kinetics of adsorption of the cationic surfactant cetylpyridinium chloride (CPC) to hydrophobic surfaces from water. A hydrophobic surface, with stable and reproducible SERS activity, is produced by binding gold colloids to an amine-terminated glass slide…
Mixed oxide photocatalysts, ZnO-Zn2SnO4 (ZnO-ZTO) nanowires with different sizes were prepared by a simple thermal evaporation method. The ZnO-ZTO nanowires were characterized with a scanning electron microscope, X-ray diffraction, high-resolution transmission electron microscopy, energy-dispersive spectrometer, and X…
Molybdenum (Mo) adsorption was investigated on five soils from the Gauro and Roccamonfina volcanoes of Campania, a southern Italian volcanic region. The soils were characterized by different degrees of development. Molybdenum adsorption exhibited a maximum near pH 4–5 and decreased with increasing pH above 5. The cons…
PURPOSE: To design nanoparticles containing accessible gadolinium atoms (Gd-NPs) as a contrast agent for magnetic resonance imaging of tumors. METHODS: Nanoparticles containing phospholipid-chelates (phosphoethanolamine diethylenetriaminepentaacetate) and DSPE-PEG (MW5000) were prepared from Brij 78 and stearyl alcoho…