Materials Literature
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Theoretical investigations of the thermoelectric and piezoelectric characteristics in the Al <sub>x</sub> In <sub>1−x</sub> N system have been carried out based on a first principles approach in combination with the semi-classical Boltzmann transport concept and density functional perturbation theory.
Flowing methanol induces a cracking of H <sub>3</sub> PW <sub>12</sub> O <sub>40</sub> particles which acts against pore blockage by coke in the methanol-to-DME reaction. As a result, coking does not necessarily decrease the performance.
Localized surface plasmon resonances are the dominating contribution to the optical enhancement and the lateral resolution in tip-enhanced Raman spectroscopy. This well studied phenomenon may give access to more information about the sample than the enhanced Raman spectra alone due to its sensitivity to the permittivi…
Consistent boundary conditions for electrochemical interfaces, which cover double layer charging, pseudo-capacitive effects and transfer reactions, are of high demand in electrochemistry and adjacent disciplines. Mathematical modeling and optimization of electrochemical systems is a strongly emerging approach to reduc…
A new strategy to improve the efficiency of dye-sensitized solar cells by using the external near-infrared light harvesting and light-scattering dual-functional upconversion (UC) material NaLuF <sub>4</sub> :Yb <sup>3+</sup> /Er <sup>3+</sup> is proposed.
We have proposed polymer stabilized liquid crystal (LC) cells with a hybrid alignment nematic (HAN) LC. LCs with positive and negative dielectric constant anisotropies are used. The cell has a reverse mode electro-optical property which shows a transparent state in a voltage off-state and a light scattering state in t…
Fluoropolymers are difficult materials to modify the surfaces because of strong C-F bonds. In this study, the surface modification of fluoropolymer films such as polytetrafluoroethylene (PTFE) with amino groups was performed by using He/NH3 gas mixture atmospheric pressure plasma jets with negatively-biased substrate.…
The atomic composition and chemical structure of polymers is fundamental to dictating properties and applications.
Photocrosslinkable water-soluble maleilated chitosan was synthesized by mixing high molecular weight of chitosan with maleic anhydride under mild and heterogeneous reaction conditions using dimethyl sulfoxine as a solvent. And then, maleilated chitosan (MCS)/ poly(ethylene glycol) diacrylate (PEGDA) hydrogels were pre…
CsVO3 nanoparticles were synthesized by the evaporation of aqueous solutions of peroxo-isopolyvanadic acid and cesium carbonate. The resulting phosphor showed white light Photoluminescence (PL) property with a broad peak in the range of 400–700 nm at an excitation wavelength of 350 nm. The as-prepared CsVO3 was heat-t…
Polymethacrylates with different type of cinnamate side groups (P1, P2 and P3) were synthesized, and their photochemical and photoinduced reorientation behaviors were investigated using linearly polarized (LP) 313 nm and 365 nm light. P1 and P2 exhibited liquid crystalline (LC) characteristics, but P3 did not. Thin P1…
Journal of Nano- and Electronic Physics. Scientific journal. ISSN: 2077-6772. Journal abbreviation: J. Nano- Electron. Phys. No page charges. All articles are freely available on-line. Issued 4 times per year. Publisher: Sumy State University. (Sumy, Ukraine)
DLC films are of significant interest for automobile parts, because they possess the potential to improve the friction property under oil lubricated conditions. In order to obtain further low friction, we focused on the combination of boron doped DLC (B-DLC) and the Mo-trimer as a lubricating oil additive, and the inf…
The bending strength of carbon fiber/thermoplastic epoxy composites (CF/TP-EP Compo.) had bi-linear increasewith increase of weight-average molecular weight (Mw) of matrix. The transition in the bending strength appeared at around 55k of Mw (“k” means 103). SEM observation of fractured surface of CF/TP-EP Compo. showe…
Pt catalysts investigated with <italic>operando</italic> XAS under rapid transient temperature automotive driving cycle conditions.
Thermo-responsive polymer coated triangular Ag nanoprisms as optical sensors.
We are reporting an efficient fast swelling procedure by regulating the glass transition temperature <italic>T</italic> <sub>g</sub> of poly(glycidyl methacrylate) (PGMA) seed particles <italic>via</italic> copolymerization with <italic>n</italic> -butyl acrylate ( <italic>n</italic> BA).
In this study, biodegradable cassava starch/poly (vinyl alcohol) (PVA) trays with and without poly (lactic acid) (PLA) coating were evaluated as possible substitutes for expanded poly (styrene) (EPS) trays in strawberry packaging. The parameters evaluated were physical and chemical parameters of pH, soluble solids and…
This research proposes a simple and practical method to make low-stray-light gratings, where the substrate shifts about a 1 mm distance in the direction parallel or perpendicular to the exposure interference fringes. When the substrate shifts, a reference grating next to the substrate is used to adjust in real time th…
Especially high health risks associated with impacts of metallic nanoparticles (Me-NPs) and their presence in the workplace and ambient air of not only the nano-industry but also of some long-existing traditional technologies make it necessary, along with keeping respective dangerous exposures as low as possible, to l…