Materials Literature
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We report on transport measurements of an InAs nanowire coupled to niobium nitride leads at high magnetic fields. We observe a zero-bias anomaly (ZBA) in the differential conductance of the nanowire for certain ranges of magnetic field and chemical potential. The ZBA can oscillate in width with either the magnetic fie…
Chemically tuned inorganic-organic hybrid materials, based on CH3NH3(═MA)Pb(I(1-x)Br(x))3 perovskites, have been studied using UV-vis absorption and X-ray diffraction patterns and applied to nanostructured solar cells. The band gap engineering brought about by the chemical management of MAPb(I(1-x)Br(x))3 perovskites…
Abstract A 2‐D grid copper(II) complex [Cu(μ 3 ‐H 2 dpzpda)(N 3 )] n (ClO 4 ) n ( 2 ) has been synthesized and structurally characterized. The copper atom in the complex is six‐coordinated in an octahedral geometry. The azide anions coordinated with copper in a 1‐end form, and the perchlorate anions are not coordinate…
The electrolyte slurry was prepared by mixing Gd-doped CeO2(GDC), solvent (ethanol and toluene), a polymer (polyvinyl butyral (PVB)) binder, and a dispersant (an amine system). The slurries were processed by an atomization process and coated on the top of microtubular tubes. A very smooth (with no cracks) electrolyte…
Performance of nanothick metal/polymer assemblies crucially depends on the internal structure of the metal–polymer assemblies. As only a combination of high sensitive techniques is able to access the fine structure changes, combined X-ray reflectivity (XRR) and electrical AFM analysis are proposed. This combination of…
This project deals with the stress analysis of riveted lap joints. The present work involves the appropriate configuration and characterization of these joints for maximum utilization. By using finite element method, stress and fracture analyses are carried out under both the residual stress field and external tensile…
An effective and reliable method was developed for the synthesis of protoporphyrin IX-derived amides. The reaction of protoporphyrin IX with an amino acid [ l -leucine, l -valine, l -lysine, l -aspartic acid (Asp), l -glutamic acid (Glu), glycine, or 6-aminohexanoic acid] or a short peptide (Asp-Glu) as an amine count…
Exploration of the Ca-Ga-Nb-O phase diagram by solid-state reaction in air led to isolation of Ca4GaNbO8. The crystal structure was determined ab initio by synchrotron X-ray and high-resolution neutron powder diffraction. Ca4GaNbO8 adopts a heavily distorted oxygen-deficient perovskite structure with the rare feature…
We demonstrate control of the magnetoresistance of Co/Cu/Fe giant magnetoresistance structures on BaTiO3(001) by electric field. The magnetoresistance clearly increases with electric field strength in the three different ferroelectric phases of BaTiO3, while the electric field dependence is more significant in the ort…
The fabrication of tetraphenyl porphyrin (TPP)–silver nanoparticle (AgP) composite films on indium–tin oxide (ITO) electrodes was carried out by the electrostatic layer-by-layer adsorption technique. Maximum enhancement in photocurrent action spectra as well as in fluorescence emission spectra was observed at an immer…
The buoyancy concept is critically re-examined for applications to dispersions of nano-particles, such as colloids, proteins, or macromolecules. It is shown that when the size of the buoyant particle is not too different (say, at most a factor of ten) from the size of the dispersed particles, new intriguing phenomena…
Retardation effects in the valence electron energy-loss spectrum (EELS) of a Si slab are analyzed by angular-resolved EELS. The dispersion curves of the valence spectra excited in a slab are directly observed from a specimen area with several different thicknesses and are interpreted by performing a calculation of the…
The chemical interactions and spin structure of (O2)4 in its ground singlet state are analyzed by means of Quantum Chemical Topology descriptors. The energetic contributions of the Interacting Quantum Atoms approach are used to obtain information about the class of interactions displayed along the dissociation path of…
A series of Au/-TiO2 with various Co/Ti ratios prepared. /TiO2 was prepared by incipient wetness impregnation with aqueous solution of cobalt nitrate. Au catalysts were prepared by deposition-precipitation (DP) method at pH 7 and 338 K. The catalysts were characterized by inductively coupled plasma-mass spectrometry,…
We report the evolution of superconductivity and the phase diagram of the K x Fe 2− y Se 2− z Te z ( z = 0–0.6) crystals grown by a one-step synthesis. The one-step synthesis is much simpler than a conventional process to grow the K x Fe 2− y Se 2 system. No structural transition is observed in any crystals, while lat…
The present work describes the piezoelectric, impedance, and conductivity studies of ( Na 0 .5 Bi 0 .5 ) 1 − x Ba x TiO 3 ; ( 1 - x ) BNT- x BT ( 0 ≤ x ≤ 1 ) ceramics. The ceramics were prepared by conventional ceramic fabrication technique. X-ray diffraction data confirmed the formation of a pure compound in all the…
Li ion containing oxynitride amorphous thin films are promising materials for electrochemical applications due to their high ionic conductivity, mechanical stability and chemical durability. Here we report on the preparation of Li boron-oxynitride (LiBON) amorphous thin films by rf sputtering of Li-diborate and Li-pyr…
Pipes of 3003/4043 clad aluminum alloys are used in air conditioning systems and are exposed to flowing relatively high‐temperature solutions (353 – 373 K). In the present investigation, the corrosion behavior of pure aluminum and 1050‐, 3003‐, and 4043‐aluminum alloys was examined by immersing in 1.57 × 10 −3 kmolm −…
Au nanoparticles (AuNPs), which easily aggregate in organic thin film, are observed to well-disperse in chicken albumen thin films. The incorporated AuNPs is distributed uniformly inside the thin film and is as dense as 650 (particles/μm(3)). In addition, enhanced ultraviolet (UV) fluorescence centered at 350 nm is ob…
The compound [4'-CF3bzPy][Ni(mnt)2] (1) (where 4'-CF3bzPy = 1-(4'-(trifluoromethyl)benzyl)pyridinium and mnt(2-) = maleonitriledithiolate) was synthesized and displays a magnetic bistability with a surprisingly large thermal hysteresis loop (~49 K). X-ray crystallographic studies reveal that in the high-temperature (H…