Materials Literature
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Carbon-based nanomaterials have emerged as a subject of enormous scientific attention due to their outstanding mechanical, electrical and thermal properties. Incorporated in a polymeric matrix, they are expected to significantly improve physical properties of the host medium at extremely small filler content. In this…
Previous research on iron oxides/hydroxides has focused on the crystalline rather than the amorphous phase, despite that the latter could have superior electrochemical activity due to the disordered structure. In this work, a simple and scalable synthesis route is developed to prepare amorphous FeOOH quantum dots (QDs…
Optoelectronic applications require materials both responsive to objective photons and able to transfer carriers, so new two-dimensional (2D) semiconductors with appropriate band gaps and high mobilities are highly desired. A broad range of band gaps and high mobilities of a 2D semiconductor family, composed of monola…
In this study, in order to develop the composition ceramics for duplex ultrasonic sensor application, PMW-PNN-PZT system ceramics were prepared using CuO as sintering aids and their phase microstructure, piezoelectric and dielectric characteristics were minutely investigated with the amount of Bi substitution. The PMW…
Double peak phase matching was recorded during experimental study of parametric frequency converters based on GaSe, its solid solutions crystals like GaSe<sub>1-x</sub>Sx and ZnGeP<sub>2</sub>. Its physical origins are identified as presence of twin, large difference between cut and PM angles, self-heating effect at a…
The Co(2+) ions of the Co1+xCr2-xSe4 phase (Co1.24Cr1.76Se4 composition with x = 0.24, C2/m space group, Cr3S4-type structure) undergo a high- to low-spin-state transition around 230 K, as concluded from the temperature-dependent single-crystal synchrotron radiation diffraction experiments and the previously reported…
The polycrystalline BaBi2Nb2O9 and Ba(Bi0.9Sm0.1)2Nb2O9 ceramics have been fabricated via the molten salt synthesis route. The temperature dependence of dielectric and electrical conductivity properties of BBN and BBSmN ceramics investigated at various frequencies have revealed the characteristic features of relaxor b…
The staining of neurons with silver began in the 1800s, but until now the great resolving power of the laser scanning confocal microscope has not been utilized to capture the in-focus and three-dimensional cytoarchitecture of metal-impregnated cells. Here, we demonstrate how spectral confocal microscopy, typically res…
Nanoparticles of layered GaSe, InSe were fabricated by laser ablation (LA) method (KrF laser, λ = 248 nm, 50 Hz, maximum energy 200 mJ, τ = 4 ns) and characterized by: •XRF; •GDOES; •SEM and TEM; •UV-, VIS-, and IRabsorption; •Raman and PL spectroscopy (also in confocal geometry). R…
Studying the stability of centrifugated gold nanorods unmodified/modified with thiols.
Abstract Perfusion explosives were prepared using porous SF‐3 propellants, which were synthesized by a supercritical fluid foaming process. Scanning electron microscopy (SEM) was used to characterize the porous SF‐3 propellants. Massive holes were generated after the foaming process. The density of perfusion explosive…
Flashover of polluted insulators in contaminated areas is one of the most important factors influencing the operation of transmission and distribution lines and finally line outages. Therefore, it is essential to prevent and detect flashover in the insulators. Hence, utilizing the insulator status monitoring systems a…
Nanoteknoloji, nanometre ölçeğindeki materyal, sistem ve cihazların geliştirilmesi ile ilgilenen bilim ve teknoloji alanıdır. Nanoteknoloji tıp, tekstil kozmetik, elektronik, ilaç, ziraat ve gıda sanayi gibi birçok sektörlerde uygulama alanı bulmuştur. Son yıllarda gıda nanoteknolojisi alanındaki gelişmeler, yenilikçi…
Abstract In spite of historic advances in cancer biology and recent development of sophisticated chemotherapeutics, the outlook for patients with advanced cancer is still grim. In this sense nanoparticles (NPs), through their unique physical properties, enable the development of new approaches for cancer diagnosis and…
One of the kind in Europe magnetometer is situated in central Lithuania and registers local magnetic field intensity. The sensitivity of the device is of pT (pico teslas) order. Magnetic field intensity is a real world sequence and as a result does not have a rank. Nevertheless, H-rank based techniques enable to analy…
In this paper we have studied the influence of substrate temperature deposition on structural and substructural characteristics of magnesium oxide films by X-ray diffraction analysis. The thin films of MgO were prepared by spray pyrolysis technique from magnesium chloride solution. We have established the phase compos…
In this study, we propose a model for the dynamics of magnetostrictive hysteresis in a thin rod actuator when mechanically the material works in his nonlinear domain. We derive two equations that represent magnetic and mechanical dynamics equilibrium. Our model results from an application of the energy balance princip…
In this study, soft clay chromophore hybrids were used to demonstrate a photo-modification strategy, in which one white light standard can be converted into another <italic>via in situ</italic> generation of a blue emitting chromophore.
This is the first study of the significant influence of the 0–3 ceramic / polymer layer on the hydrostatic piezoelectric parameters of novel 2–0–2 relaxor-ferroelectric single crystal / ferroelectric ceramic / polymer composites. Examples of the performance of two 2–0–2 composites based on domain-engineered single cry…
Abstract We present a facile method to obtain MoS 2 -based nonvolatile memory field-effect transistors by oxygen plasma treatment on the MoS 2 surface that is in contact with a dielectric. The oxygen plasma treatment provides a way of introducing deep defects into the MoS 2 surface. Only those deep defects located at…