Materials Literature
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By dropwise addition of a solution of tricarboxamide-cored triphenylamine dendrimer G1 in THF into water (5 × 10−6 M), nanoparticles with average diameters of 80 ± 20 nm were formed and collected by centrifugation. The particles show aggregation induced emission and emit green light under photoluminescence conditions.…
It has been a long-term dream for scientists working in the field of catalysis to characterize the catalyst details at any state during the course of reaction under actual working conditions. Here, an amber-inspired hybrid material was designed to trap the catalyst working state generated during the reaction process o…
Abstract Bis(trimethylsilyl)ethylamine (BTMSEA) was synthesized and characterized as CVD precursor for silicon carbonitride SiCxNy films synthesis (vapor pressure, thermodynamic modeling). SiCxNy films were deposited by PECVD from BTMSEA.in.the.temperature.range.of.100-700 oC.using.two.additional.gases.(He.or.NH3)..FT…
The crystal structure, composition, galvanomagnetic properties in low magnetic fields (4.2 K ≤ T ≤ 300 K, B ≤ 0.07 T), and the Shubnikov–de Haas effect (T = 4.2 K, B ≤ 7 T) are studied in Pb1−x−ySnxVyTe (x = 0, 0.05–0.18) alloys synthesized by the Bridgman technique with variable vanadium impurity concentrations. It i…
We present a grating imaging scanning lithography system for the fabrication of large-sized gratings. In this technology, 1-order diffractive beams are generated by a phase grating and selected by a spatial filter. Meanwhile, a 4f system enables the 1-order diffractive beams to form a grating image with a clear jagged…
A simple and inexpensive solution-based method to grow functional and continuous nano-crystalline CdS thin films is demonstrated. The resulting CdS films are used to fabricate n-type thin film transistors (TFTs) with field effect mobility as high as ∼0.55 cm2 V−1 s−1, a threshold voltage (VT) of ∼8.4 V, and an on/off…
We demonstrate the fabrication and improvements of our next generation Thermoelectric Nanowire Characterization Platform (TNCP) that is utilized to investigate the thermoelectric properties of individual nanowires to obtain the Seebeck coefficient S, electrical conductivity σ and thermal conductivity κ from the same t…
Conducting kenaf/polyaniline (KF/PANI) biofibers were successfully prepared via in situ oxidative polymerization. It was demonstrated, for the first time, the possibility of imparting new electronic properties on KF by coating with acid-doped PANI. The morphological analysis revealed three different PANI morphologies…
A material specific peptide bound to Fe2O3 facilitates the selective sequestration of Au from a colloidal mixture of Au and CdS nanoparticles; the Au-Fe2O3 precipitate can then be magnetically separated from the colloidal CdS, and the Au nanoparticles can be recovered upon release from the Fe2O3.
Cordierite ceramics were prepared from several types of kaolin powders and talc powders having various median particle size with nanometer-sized alumina sol. Powder mixtures were uniaxially pressed, followed by cold isostatic pressing to make thin compacts. Crystal orientation of talc particle and resultant cordierite…
Various fabric properties are important for different sports applications. In order to improve fabric performance the focus is more on the material features of fabrics rather than the pattern. Fabric properties like moisture management, air permeability, and stretchability depend not only on the materials (the polymer…
The influence of the shape and grade of inserts upon the geometric structure of the composite coatings Ni-5%Al15%Al2O3 and alloy coatings of Ni-5% Al is considered in the paper. Nickel matrix coatings were sprayed by the Casto-Dyn 8000 torch on a steel substrate, and then subjected to straight turning. Determining of…
A Monte Carlo (MC) method is proposed by establishing a new model of phonon scattering processes with random sampling according to a scattering probability function. The MC scheme is used to simulate steady and transient ballistic-diffusive heat conduction in silicon nanofilm. In the MC simulations, we trace the phono…
Strong interaction between bubble and free-surface will cause complex phenomena, producing many different types of spike. Based on potential flow theory, a numerical model was established to simulate the crown spike. A downward jet was formed during the bubble’s collapsing, and simulation of the free-surface was conti…
Some modified styrene butadiene rubbers with functional groups at polymer chain ends have been prepared by solution polymerization system (S-SBRs). They showed reduction in the hysteresis loss of rubber compounds with silica or carbon black as reinforcing filler. Especially, the modified S-SBR with both primary amino…
2-layer aluminum/polyurethane (Al/PU) laminated sheets were prepared by a new adhesion method, a double-step treatment consisting of: (1) applying low dose ≦ 0.43 MGy homogeneous low energy electron beam irradiation (HLEBI) to the 2-layer assembly where the HLEBI penetrates through the Al and PU layers, respectively,…
With an objective to develop simple organic systems for optoelectronic applications, we have investigated photophysical properties of water soluble cyclophane derivatives 1, 2 and model compound 3 in solution and solid state. Of these, the symmetrical cyclophane 1 exhibited monomer emission in methanol, whereas an int…
Fluorine interaction assisted AIEE characteristic in an expanded calixbenzophyrin is presented by single-crystal X-ray-diffraction analysis and molecular modelling approaches. Selective exposure to volatile organic compounds such as ketones and esters results in the breaking of fluorine interaction, leading to enhance…
Magnetic and fluorescent bifunctional nanocomposites have great potential in biomolecule detection and biological imaging applications. So far, it remains a challenge to prepare bifunctional nanocomposites with high colloidal and fluorescent stability. To address this problem, we utilized a simple ring-opening reactio…
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