Materials Literature
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We report the room-temperature ferromagnetic properties that can be tuned by light irradiation in the Li and Mn co-doped NiO films (LMNO) grown by the spinning coating. The optical tunable magnetic behavior is enhanced by the increase of the Li doping concentration. First-principle calculations reveal that the Li dopi…
Abstract Two heterocyclic‐based energetic ionic salts were synthesized from 4‐amino‐3‐hydrazino‐5‐mercapto‐1, 2,4‐triazole (1), which was used as proton bases reacting with nitric or perchloric acid. They were characterized by elemental analysis, IR spectroscopy, and single‐crystal X‐ray diffraction. In addition, thei…
The objective of this work was to determine the effect of ultrasound application on the stability of foams of mixed systems of soy protein isolate and a hydroxypropyl methylcellulose called E4M at pH 7 and 3. It was used a soluble fraction of soy protein which is the responsible of functional properties in food applic…
The cationic (1,3,5-triazapentadiene)Pt(II) complexes [1](Cl)2, [2](Cl)2, [3](Br)2, and [4](Cl)2, were crystallized from ROH-containing systems (R = Me, Et) providing alcohol solvates studied by X-ray diffraction. In the crystal structures of [1-4][(Hal)2(ROH)2] (R = Me, Et), the Hal(-) ion interacts with two or three…
We propose a general framework for boosting combinatorial solvers through human computation. Our framework combines insights from human workers with the power of combinatorial optimization. The combinatorial solver is also used to guide requests for the workers, and thereby obtain the most useful human feedback quickl…
The study of oxygen chemisorption on single-walled carbon nanotubes generally relies on simple atomistic models and hence hampers the possibility to understand whether nanotube size or adduct concentration have a role in determining the surface-adsorbate interaction. Our large-scale DFT-based simulations show that str…
Structural color is produced when nanostructures called schemochromes alter light reflected from a surface through different optic principles, in contrast with other types of colors that are produced when pigments selectively absorb certain wavelengths of light. Research on biogenic photonic nanostructures has focused…
A Variable Line Spacing (VLS) diffraction grating has been fabricated using an optical direct write technique. This grating is now in use at the Advanced Light Source, in beamline 12.0.1, delivering light for EUV lithography. Direct Write Lithography (DWL) with focused light at λ = 442 nm was used for the first time t…
The application of advanced theory and modeling techniques has become an essential component to understand material properties and hasten the design and discovery of new ones. This is true for diverse applications. Therefore, current efforts aimed towards finding new scintillator materials are also aligned with this g…
Abstract Using X‐ray diffraction it was established that the actual composition of the ternary compound reported as “TbAl2Ge” is close to Tb2Al3Ge3 (refined Tb2Al3.039(1)Ge3). Differential thermal analysis showed that the compound exists in a narrow temperature range from 618 to 748 °C. The crystal structure was deter…
This study aimed to reveal differences in UV (ultraviolet) -absorbing dissolved organic carbon (DOC) between three prominent Austrian soil types: a Cambisol and a Chernozem developed from Tertiary marl, both under agricultural management, and a Podzol from a mixed coniferous beech forest stand. Topsoil samples (0–300…
A 5,5′-azotetrazole (H2AT)-based K+ complex of [K3(AT)1.5(H2O)4] (1) and another 5-azotetrazolyl salicylic acid (H3ASA)-based Cd2+ complex [Cd(H2ASA)2(H2O)2] (2) have been synthesized and characterized by single-crystal X-ray diffraction analysis. Complex 1 shows a 3-D structure formed by two μ7- and μ8-bridging trans…
In the frame of Huang-Rhys's lattice relaxation model, we theoretically investigate the electron relaxation assisted by optical phonon resonance scattering among Landau levels with spin-conserving and spin-flip processes in graphene. We not only consider the longitudinal optical (LO) phonon scattering, but also the su…
There are several military or commercial systems operating in very harsh environments that require rugged windows. On some of these systems, windows become the single point of failure. These applications include sensor or imaging systems, high-energy laser weapons systems, submarine photonic masts, IR countermeasures…
Low hole mobility currently limits the efficiency of amorphous silicon photovoltaic devices. We explore three possible phenomena contributing to this low mobility: coordination defects, self-trapping ionization displacement defects, and lattice expansion allowing for hole wave-function delocalization. Through a conflu…
In the present work, the friction and wear properties of acrylonitrile butadiene styrene based composites filled with aluminum, boron carbide and glass spheres particles were studied. Fillers contents in the ABS were 5, 10, 15, and 20 wt%. The result showed that the addition of fillers to the composite changed the fri…
We report on fabrication and investigation of optical and morphological properties of highly efficient (a quantum yield of 1%) upconversion polymer-inorganic nanocomposite thin film emitters prepared by the new technique of double beam matrix assisted pulsed laser evaporation (DB-MAPLE). Polymer poly(methyl methacryla…
Using the change in the intrinsic optical properties of YMg-based thin films upon exposure to hydrogen, we observe the presence of hydrogen at concentrations as low as 20 ppm just by a change in color. The eye-visible color change circumvents the use of any electronics in this device, thereby making it an inexpensive…
Abstract The possible use of group 4 metallocene cations as neutralizers for some energetic molecules has been assessed using quantum chemical calculations. In particular, titanocene, zirconocene, and hafnocene methyl cations were tested as neutralizers for FOX‐7, an energetic molecule that has been synthesized in 199…
Ferromagnetic SrFe 12 O 19 –ZnFe 2 O 4 nanostructure composite particles were synthesized by co-precipitation of chloride salts, in different stoichiometric ratios, by addition of sodium hydroxide solution. The resulting precursors were heat treated at temperatures in the range 800–1200°C for 4 h. Exchange interaction…