Abstract Memristors‐based integrated circuits for emerging bio‐inspired computing paradigms require an approach utilizing both volatile and nonvolatile memristive devices. Here, innovative architecture comprising of 1D CVD‐grown core–shell heterostructures (CSHSs) MoO 2 ‐MoS is employed as memristors manifesting switching (with high selectivity 10 7 steep slope 0.6 mV decade −1 ) phenomena I on / off ≈10 3 speed 60 ns). In these CSHSs, the metallic core with current carrying capacity...

Correlation of charge state Mn with the increase in resistivity concentration is demonstrated Mn-doped indium tin oxide films. Bonding analysis shows that 2p3/2 core level can be deconvoluted into three components corresponding to Mn2+ and Mn4+ binding energies 640.8 eV 642.7 eV, respectively, a satellite at ∼5.4 away from peak. The presence peak unambiguously proves exists +2 state. ratio ∼4:1 suggests compensation occurs n-type films causing increase.

Insulating films of In2O3 were prepared by sputtering indium in the presence pure oxygen using dc magnetron sputtering. Transmission electron microscopic investigations showed to be single phase and polycrystalline. Analysis optical transmittance data have an band gap 3.71±0.01 eV. Tunnel junctions made with high Tc superconductors Bi2Sr2Ca1Cu2Oy NdBa2Cu3O7−δ oxide as barrier layer Pb0.5In0.5 counter electrode. The conductance spectra displayed prominent structures attributable energy gap....

An experimental setup is developed for the measurement of Seebeck coefficient thin wires and films in temperature range 300-650 K. The makes use integral method measuring voltage across sample. Two pointed copper rods with in-built thermocouples serve as hot cold probes well leads voltage. employs localized heating enables easy sample loading using a spring loaded mounting system fully automated. Test measurements are made on constantan wire indium tin oxide (ITO) film illustration. obtained...

Fabry-Pérot (FP) modes of a dielectric cavity with planar distribution metal nanoparticles at one end have been studied numerically. An unusual enhancement in the strength FP is observed close to strong localized surface plasmon resonance nanoparticles. Experimental evidence for numerical results has provided by studying ZnO thin film cavities Ag (Au) end. The resonances interpreted terms redefined having strongly dispersive adjacent medium.

Abstract Thermal stability of silver selenide thin films formed from the solid‐state reaction Ag‐Se diffusion couples on Si substrates covered with a Cr film, is investigated. Glancing angle X‐ray diffraction (GXRD), XPS, atomic force microscopy (AFM) and Rutherford backscattering spectrometry (RBS) are used to characterize as‐deposited those annealed at 100, 200, 300, 400 °C. The results reveal formation polycrystalline orthorhombic that remain stable without compositional change upon...

Micro-Raman spectroscopy measurements were made on polycrystalline and amorphous thin films of CuInTe2 as well bulk CuInTe2. Various vibrational modes exhibited by the attributed to those expected for single crystal Raman spectra presented a broad spectrum, decomposition which revealed presence elemental tellurium film surface. Laser-induced changes studied acquiring with higher laser beam power. Modes due appeared when acquired during laser–sample interaction, indicating segregation. The...

In condensed matter systems, there exists a class of exotic localized electronic states wherein the localization is induced, not by disorder or defect, but extremely strong interactions, for example, Kondo-insulator and Mott-insulator. this work, we investigate experimentally implement photonic analog induced ultra-strong interactions in coupled three-mode system. We show that propagating mode can be achieved without aid an underlying spatial disorder, even periodicity. demonstrate same...

Transparent thin-film thermocouples have been fabricated with indium tin oxide (ITO) and manganese doped (Mn:ITO) as the positive negative legs, respectively. Optical transparency of was above 85% in visible region spectrum. Presence Mn has found to enhance thermoelectric response, without significantly increasing resistivity. Seebeck voltages ~ 20 mV 31 obtained at 625 K, respectively, for Mn:ITO legs having 1.6 at.% 4.3 Mn. The response be reproducible an error plusmn2%.

Gold nanoparticle embedded ZnO thin films have been studied at the fundamental and second harmonic wavelengths of a picosecond laser by Z-scan technique. The exhibit effect saturable absorption self-defocusing. Large value third order nonlinear susceptibility (∼10−8 esu) has observed 1064 nm. Fast relaxation time measurements performed with diffraction probe beam laser-induced transient grating Figure merit values for optical switching applications obtained. One samples tested passive...

A two-prism experimental arrangement having wide angular scan ranges for the study of surface plasmon resonance is presented. The setup has a single rotating element instead high cost goniometer and stationary photodetector which positioned such that it always receives reflected beam normally. usefulness been verified by theoretical studies at an Au–air interface.

Thermopower measurements in a range of 300–650 K along with room temperature optical absorption and electrical resistivity studies were performed on indium oxide (IO) tin (ITO) thin films grown by reactive dc sputtering. The thermopower as-grown oxygen-annealed IO ITO measured Ar ambient displayed characteristics attributable to oxygen loss. observations substantiated results.

The plasmonic behavior of metallic nanoparticles is explicitly dependent on their shape, size and the surrounding dielectric space. This study encompasses influence ZnO matrix, morphology Au (AuNPs) organization optical ZnO/AuNPs-ZnO/ZnO/GP structures (GP: glass plate). These have been grown by a multiple-step physical process, which includes dc sputtering, thermal evaporation annealing. Different analytical techniques such as scanning electron microscopy, glancing angle X-ray diffraction,...

Polycrystalline AgIn 3 Te 5 synthesized by melt-quench technique has been analyzed using proton induced X-ray emission (PIXE), diffraction (XRD), and selected area electron diffraction. PIXE analysis yielded the content of Ag, In, Te, respectively, to be 9.76%, 31.18%, 59.05% weight. Structure refinement was carried out considering those space groups from I- P-type tetragonal systems which possess 4 symmetry preserve anion sublattice arrangement chalcopyrite structure (space group: I 2 d )...