Materials Literature
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Coupled simulations of both thermal and electrical processes are employed to perform reliable estimations of the harvesting capabilities of a novel thermoelectric generator concept based on the use of p- and n-type materials films of nanometric thickness separated by a dielectric layer. The doping and geometrical para…
Abstract Ferrivauxite, ideally Fe3+Al2(PO4)2(OH)3·5H2O, is an oxidized equivalent of vauxite, Fe2+Al2(PO4)2(OH)2·6H2O, and forms oxidation pseudomorphs after that mineral. It occurs in association with sigloite and crandallite at the Llallagua tin deposit, Bolivia. It is triclinic, space group P1̄, with a = 9.198(2),…
ZnO:Al films are deposited layer-by-layer onto silicon and glass substrates, by using the radio-frequency magnetron sputtering method at various argon pressures from 0.5 to 2 Pa in a deposition chamber. The influence of this pressure on the structure and the optical and electrical properties of ZnO:Al films is studied…
CdSe quantum dots (QDs) and polyaniline (PAni) were mixed to prepare CdSe QDs/PAni complex. PAni can quench the fluorescence of CdSe QDs. Fluorescence intensity of CdSe QDs/PAni complex is related to the size of CdSe QDs and the concentration of PAni. UV-Vis absorption spectra, fluorescence spectra, time-resolved fluo…
Eu3+-doped ZrO2 phosphors with different charge compensators (Li+, Na+, K+) were prepared by the sol-gel method. The properties of the as-obtained samples are characterized by X-ray diffraction, scanning electron microscope, photoluminescence spectra, and decay curve. The results show that ZrO2:Eu3+ phosphors with dif…
Growth of a new van der Waals material—2D Tin Monoxide (SnO)—by using a pulsed laser deposition technique is reported by A. Tiwari and coworkers in article number 1500453. Such materials are promising candidates for developing next generation electronic devices. In their article, the authors demonstrate that the numbe…
No abstract is available for this article.
Abstract Two nickel(II) complexes were synthesized and structurally as well as magnetically characterized by using two positional isomeric nitronyl nitroxide radical ligands and H3cda as co‐ligand: [Ni(NIToPy)(cda)]H2O·CH3OH (1) and [Ni(IM4Py)2(cda)H2O] (2) [NIToPy = 2‐(3′‐pyridinyl)‐4,4,5,5‐tetramethyl‐4,5‐dihydro‐1H…
On page 2009, X. Xie and co-workers demonstrate a new strategy that enables the fast growth of a ≈300 μm bilayer graphene in ≈10 minutes, by using the synergic effects of Cu85Ni15 and the copper vapor evaporated from copper foil. The copper vapor reduced the growth rate of the first graphene layer while the carbon dis…
A Ni 3 Al intermetallic compound was obtained by spark plasma sintering of mechanically activated Ni and Al powders in atomic ratio 3:1 respectively. Samples with boron addition of 0.1 and 0.2% (wt.) and samples without boron were obtained. The maximum value of the relative density (~99 %) has been obtained for the ma…
Ca9Y(PO4)7:Sm3+ phosphor was prepared via solid state reaction. The crystal structure of the phosphor was characterized by X-ray powder diffraction (XRD). The photoluminescence (PL) properties of CagY(PO4)7:Sm3+ were investigated. The emission of the Ca9Y(PO4)7:Sm3+ phosphor consisted of some sharp emission peaks of S…
Er3+/Yb3+ co-doped BaGd2CuO5 upconversion luminescent materials are obtained by solid phase method. Rietveld refinement on X-ray diffraction data indicates that Er3+/Yb3+ ions are inclined to occupy the Gd(1) site in the structure of BaGd2CuO5 (green phase). Two green emission peaks located at 523 nm and 547 nm have b…
Background: Nanotechnology is a field of applied science and technology covering a broad range of topics. Use of nanotechnology and especially silver nanoparticles in control of bacterial diseases and infections has been studied in the recent years. The aim of the present study was to investigate the in vitro antibact…
Summary Self‐organized arrested precipitation technique (APT) has been successfully used for synthesis of nubbly‐like cadmium sulfoselenide (Cd(SSe)) thin film. Deposited Cd(SSe) thin films was characterized by using UV–Vis spectrophotometer, X‐ray diffraction (XRD) study, field emission scanning electron microscopy (…
This paper studies the influence of alkyl-chain length in poly(3-alkylthiophene)s over the morphology of thin films and electrical parameters of the devices based on it. Regioregular poly(3-hexylthiophene) and poly(3-octylthiophene) were chosen as the semiconducting materials for the study. The morphological variation…
Summary A series of new polyimides were obtained by the polycondensation reactions of the three diamines containing pyridine and anthracene units with various aromatic tetra carboxylic dianhydrides via both two‐step and one‐step methods. The precursors and monomers were characterized by elemental analysis, FT‐IR, 1H‐N…
In this paper, we report the synthesis and optical properties of Fe(III) doped CdS nanobelts (NBs) via simple Chemical Vapor Deposition (CVD) technique to explore their potential in nano-optics. The energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) analysis manifested the presence of Fe(III) ions…
SrWO4:Ln3+ (Ln = Eu, Ce, and Tb) nanocrystals were successfully synthesized by a hydrothermal method, and were characterized by X-ray diffraction, transmission electron microscopy, and scanning electron microscopy. The results indicated that the crystalline size of nanocrystals decreases with increasing Eu3+ concentra…
Lead sulfide (PbS) quantum dots (QDs) have been synthesized via successive ionic layer adsorption and reaction (SILAR) on a titanium dioxide (TiO2) nanoporous film for the fabrication of quantum dot-sensitized solar cells (QDSCs). The reaction is environmental friendly and energy saving. The green synthesized PbS QDs…
In this article, oxygen and temperature-sensing hybrid materials consisting of [Ru(Phen)3]2+ portions covalently-grafted onto the sol-gel derived ormosil network were prepared by co-condensation of tetraethoxysilane (TEOS) using n-octyltriethoxysilane as the network modifier. For comparison purposes, the hybrid materi…