Materials Literature
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Among electromagnetic spectrum, terahertz region has been utilized less due to the lack of appropriate devices that works well in these frequencies But recently growing interest has been focused to design devices with functionality in terahertz region because of potential terahertz applications. We present a novel str…
ADVERTISEMENT RETURN TO ISSUEGuest CommentaryNEXTColloidal Quantum Dots: A Model Nanoscience SystemMasaru Kuno*View Author Information Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States*E-mail: [email protected]Cite this: J. Phys. Ch…
We report the results of first-principles calculations for the atomic, electronic, and magnetic properties of the Co atoms embedded in divacancy defects in graphene nanoribbons with zigzag-shaped edges. We find that the edges play an important role in the stabilization of a Co-divacancy complex near the edge, where th…
In this work, the first generation of poly(propyleneimine) dendrimers were functionalized with alkoxysilane terminal groups and subjected to one of two different sol-gel process that followed two different catalytic pathways, that is base- or acid-catalyzed pathways. Thus, two series of new organic-inorganic hybrid ma…
A set of terfluorenes and terfluorene-like molecules with different pendant substitutions or side groups were designed and synthesized, their photophysical properties and the excited-state geometries were studied. Dual fluorescence emissions were observed in compounds with rigid pendant groups bearing electron-donatin…
The structural, energetic and electronic properties of carbon nanobuds (CNBs) with the smallest fullerene C 20 covalently attached to the sidewall of single-walled carbon nanotubes (SWNTs) are studied by first-principles calculations. Due to the high curvature of C 20 and the resulting chemical activity, the binding b…
Les britholites ont suscité un grand intérêt auprès des chercheurs en raison de leurs applications potentielles en tant que matrices pour le confinement de certains déchets séparés issus de l’industrie nucléaire, comme les actinides mineurs et certains produits de fission. Cependant, leur préparation nécessite des tem…
Purpose – Steel heavy plates, grade S355, micro‐alloyed with Vanadium‐V and/or Niobium‐Nb plus Titanium‐Ti in thicknesses from 5 to 60 mm, 200.000‐350.000 t/y, are produced according to EN 10025 at STOMANA S.A., a company of the SIDENOR Group in Pernik Bulgaria, and are exported to the European Market. These plates fu…
Improving the reliability of micro-electronic devices depends in part on developing a more in-depth understanding of dislocations because dislocations are barriers to charge carriers. To this end, the quasi-static simulation of discrete dislocations dynamics in materials under mechanical and electrical loads is presen…
Abstract The effect of multiwall carbon nanotubes (MWCNTs) on creep of epoxy matrix was evaluated on the basis of short‐term creep‐recovery tests performed at different stresses and temperatures. Six different compositions of MWCNT and bisphenol A epoxy resin (0–3.8 wt % of MWCNTs) were investigated. Slight reduction…
The UV/Vis spectra of selected substituted subporphyrazines (SubPz) and subphthalocyanines (SubPc) with aluminum and gallium as central atoms are analyzed through time-dependent DFT calculations in chloroform. The results are compared with previous results with boron as the central atom to analyze the photochemical pr…
Ni0.5Zn0.5Fe2O4 (NZO)/epoxy composites with 1–3-type structure consisting of NZO rods in an epoxy matrix were fabricated by the dice and fill technique, with volume fraction from 40% to 70%. Improved frequency stability of the dielectric and magnetic properties was obtained in the frequency range from 10 MHz to 1 GHz.…
The dielectric permittivity is one of the most important properties of ferroelectrics and is strongly dependent upon the measuring conditions (electric field strength and frequency, external stress, among others). The electric field dependence of the dielectric permittivity is modeled considering ferroelectrics in whi…
Gold nanorods (AuNRs) were obtained via a wet chemistry technique, in aqueous medium, employing crystallisation seeds. The kinetics of formation, the aspect ratio, and the selectivity of the particles were evaluated according to the parameters of synthesis: the growth-driving agent, seed, and gold precursor concentrat…
= 2%-9% are obtained by Fe deposition onto Ge(001) at high temperatures (500 °C). Low energy electron diffraction (LEED) investigation evidenced the preservation of the (1 × 1) surface structure of Ge(001) with Fe deposition. X-ray photoelectron spectroscopy (XPS) at Ge 3d and Fe 2p core levels evidenced strong Fe dif…
Abstract In this article, collagen modified polylactide (CPLA) was synthesized by means of graft modification, and its structure was confirmed by FTIR and FITC‐labeled fluorescence spectra. Subsequently, the performance of CPLA was characterized with hydrophilicity test and degradability test. After that, the aspirin…
Chain-like Co flower is synthesized by simply modulating the reaction conditions via a facile liquid-phase reduction method. The morphology evolution process and transformation mechanism from particle to flower and finally to chain-like flower have been systematically investigated. [001] is the preferred growth orient…
The propensity for crystallisation of acetanilides and propionanilides was compared both by polythermal metastable zone width measurements and by isothermal induction time measurements. Although there were clear relationships between the metastable zone widths and the conformational multiplicity in some cases, they br…
Heteroepitaxial Ge1-xMnx quantum dots (QDs) were grown on Si (001) by molecular beam epitaxial co-deposition, with x = 0 to 0.10, in order to explore the interaction between Mn content, surface morphological evolution, and magnetism. Morphological evolution typical of the Ge/Si (001) system was observed, where the eff…
I reflect on my research on pyridoxal phosphate (PLP) enzymes over fifty-five years and on how I combined research with marriage and family. My Ph.D. research with Esmond E. Snell established one aspect of PLP enzyme mechanism. My postdoctoral work first with Hans L. Kornberg and then with Alton Meister characterized…