Materials Literature
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Resistive switching effect has been demonstrated in LaNiO3\Pa0.7Ca0.3MnO3\Ti top-down device structures. Hysteretic current-voltage (I-V) characteristic was observed by applying potential differences in the order of 5 V across the electrodes. I-V characteristics with different combinations of top and bottom electrodes…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Tanja Deckert‐Gaudig, Volker Deckert; Atomically Flat Metal Nanoplates: Ideal Substrates For TERS…
Cold starting performance and high temperature operation are current issues in the development of high performance polymer electrolyte fuel cell (PEFC) electrodes. Although excess water must be removed to improve these aspects of electrode performance, it is also important to adopt a structure that prevents the electr…
Every day thousands of shipments of radioactive materials are transported on international and national routes. These consignments, which are carried by road, rail, sea, air and inland waterway, can range from smoke detectors and cobalt sources for medical uses to reprocessed fuel for use in electricity generation. Th…
Solid oxide fuel cells (SOFCs) are energy conversion devices that convert chemical energy to electrical energy with high efficiency and have the added advantage of least production of pollutants during their operation. SOFCs comprise of a number of components such as the anode, the electrolyte, the cathode and the int…
We show theoretically and experimentally that by adjusting the lattice configuration we are able to manipulate the near-field interaction of resonant particles, and thus tune the response of a lattice of split-ring resonators.
Wood cell wall, consisting of polysaccharides (cellulose and hemicelluloses) and an aromatic polymer (lignin), exhibits a honeycomb-like arrangement. Our research group has been making attempts to reconstruct those wood components, isolated through a biorefinery process, to prepare a wood-cell-wall-mimicking material,…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Mateusz Czyzycki, Marek Lankosz, Marek Bielewski; Quantitative Elemental Microanalysis Of Individ…
Ordered GeSi nanoislands were fabricated in combination of self-assembly and nanosphere lithography on Si (001) substrates. Well ordered pits in a hexagonal lattice on Si (001) substrates are readily obtained via nanosphere lithography. The preferential nucleation of GeSi nanoislands in the pits results in laterally o…
The energy spectrum and density of states of graphene bilayer superlattices (SLs) are evaluated. We take into account doping and/or gating of the layers as well as tunnel coupling between them. In addition, we evaluate the transmission through such SLs and through single or double barriers. The transmission exhibits a…
Abstract The sub- μ m interdigitated microelectrodes presented in this work aims at achieving a high collection efficiency for electrochemical dopamine (DA) detection. Through nanoimprint technology, sub- μ m microelectrodes can be batch fabricated without relying on the expensive electron-beam lithography repeatedly.…
The temperature dependence of the impedance spectra of PEDOT:PSS thin film have been investigated in the frequency range of 40 Hz–105 Hz. and temperature range 303–473 K. Obtained data reveal that a.c conductivity obeys the relation σac(ω) = Aωs and exponent s is found to decrese by increasing temperature. The obtaine…
This paper dealt with the acoustic detection of partial discharge (PD) in insulation oil for insulation diagnostics of oil immersed transformers. Electrode systems such as needle to plane, plane to plane, and floating were fabricated to simulate some defects in transformers. A wide band acoustic emission(AE) sensor wi…
. The accurate first-principle method was used to calculate the electronic structures of the four boride superconductors. Their DOS (the density of states), band structures as well as their specific electronic structures were discovered. It was found that they all had a metallic band crossing the Fermi surface on the…
The paper presents arguments to support the view that the often quoted relation σp = Lim[μKI/(πρ)1/2] as ρ (flaw root radius of curvature) tends to zero, with σp being the peak flaw-tip stress, KI, the effective stress intensity factor, and μ = 2, is strictly valid only for the case of an infinitely deep parabolic fla…
Numerical studies of the self–imaging phenomenon (“Talbot–effect”) as an example of multimode propagation in plasmonic waveguides were performed. For a suitable choice of the parameters the field remains finite after several Talbot lengths.
The precipitation behavior of Cu-Fe alloys with Ni addition on isothermal annealing at 878K was investigated by means of transmission electron microscopy (TEM) and SQUID measurements. Nano-scale coherent particles were randomly formed at the initial stage of the precipitation process. The ordering trend was outstandin…
Plasma-assisted electron-beam evaporation leads to changes in the crystallinity, density, and stresses of thin films. A dual-source plasma system provides stress control of large-aperture, high-fluence coatings used in vacuum for substrates 1 m in aperture.
Corrosion sensitivity of 2205 and 316L stainless steel in 3.5% NaCl solution was studied by potentiodynamic polarization, EIS and Mott-Schottky. The results show that the 2205 duplex stainless steel has better corrosion resistance than 316L stainless steel and the results of EIS spectra measurements in different forma…
Significant research has been focused on the synthesis of metal-organic frameworks (MOFs) with controllable compositions and structures, while much fewer works have been devoted to the construction of large micro-sized MOFs with uniform sizes and morphologies, which could be beneficial for practical applications. In t…