Materials Literature
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Abstract With the ultimate goal of rationally studying the factor able to affect the stability of the photoinduced high‐spin state, we selected three iron(II) 1D coordination polymers with the general formula [FeL eq (L ax )] · solvent with L eq = {3,3′‐[1,2‐phenylenebis(iminomethylidyne)]bis(2,4‐pentanedionato)(2‐)‐…
The synthesis of silica‐based colloidosomes with a polymer core obtained via inverse Pickering emulsification and their use as an implantable drug delivery system in zebrafish are described. Silica nanoparticles act as a stabilizer of a water‐in‐oil emulsion creating aqueous droplets with a silica shell. The core of t…
RUM mit Kick: Das Ausmaß der negativen thermischen Ausdehnung (NTE) in LnCo(CN)6-Koordinationsgerüsten nimmt mit steigendem Radius des Lanthanoidions (rLn) zu. Die Strukturen enthalten ungewöhnliche lokal instabile trigonal-prismatische LnN6-Einheiten, die an einer zur NTE beitragenden Schwingungsmode beteiligt sind.…
Although ZnTe nanobelts present an intriguing platform to study various optical properties and phenomena in semiconductors, there was very limited study regarding the crystalline structure and defects of ZnTe nanobelts. Here, we correlate the structural properties and features in the crystal of ZnTe nanobelts with the…
We report on the possibility of describing the absorption and emission characteristics of an ensemble of silicon nanocrystals (NCs) with realistic distributions in the NC size, by the sum of the responses of the single NCs. The individual NC responses are evaluated by means of ab initio theoretical calculations and th…
We have investigated local element distributions in a Dy-doped Nd 2 Fe 14 B hot-deformed magnet by atomic-column resolution chemical mapping using an X-ray energy-dispersive spectrometer (XEDS) attached to an aberration-corrected scanning transmission electron microscope (Cs-corrected STEM). The positions of the Nd an…
This work shows that when a Schottky barrier is present in a photovoltaic device, such as in a device with an ITO/ZnO contact, equivalent circuit analysis must be performed with admittance spectroscopy to accurately determine the pn junction interface recombination parameters (i.e., capture cross section and density o…
We report on broadband nonlinear optical (NLO) responses from a phase-change chalcogenide compound K(4)GeP(4)Se(12). Its glassy phase exhibits unusual second-harmonic generation (SHG) due to the preservation of local crystallographic order. The SHG efficiency of the glassy form can be boosted by more than 2 orders of…
The present study was aimed to identify the antigenotoxic effect of bio-synthesised silver nanoparticles (SNP) of Ocimum sanctum leaf extract against cyclophosphamide (CP). We tested the antigenotoxic effect of bio-synthesized silver nanoparticles of O. sanctum leaf extract on human lymphocytes against CP by using chr…
A series of hemicyanine derivatives are excellent fluorescent viscosity sensors in live cells and in imaging of living tissues due to their low quantum yields in solution but large fluorescence enhancements in viscous environments. Herein, three carbazole-based hemicyanine dyes with different heterocycles are studied.…
Quantum chemical calculations based on density functional theory (DFT) methods were performed on indigo blue (IB), methylene blue (MB), and crystal violet (CV) molecules as inhibitors for iron corrosion in acid media. DFT calculations were performed on the molecular structures to describe electronic parameters which a…
Populations of droplets or particles dispersed in a liquid may evolve through Brownian collisions, aggregation, and coalescence. We have found a set of conditions under which these populations evolve spontaneously toward a narrow size distribution. The experimental system consists of poly(methyl methacrylate) (PMMA) n…
Axisymmetric radiating and scattering structures whose rotational invariance is broken by non-axisymmetric excitations present an important class of problems in electromagnetics. For such problems, a cylindrical wave decomposition formalism can be used to efficiently obtain numerical solutions to the full-wave frequen…
ZnO is known as a good photoluminescent semiconductor due to its ability to emit visible light. However, the visible emission mechanism is still under debate. In this work, we have successfully synthesized nanoparticles using LiOH, KOH and NaOH as bases and have achieved visible emission of various colours, such as bl…
A central aim in metamaterial research is to engineer subwavelength unit cells that give rise to desired effective-medium properties and parameters, such as a negative refractive index. Ideally one can disregard the details of the unit cell and employ the effective description instead. A popular strategy to compensate…
Nonlocal optical response of materials, important at the nanometric scale, influences numerous optical phenomena, such as electromagnetic field confinement and spectral characteristics of plasmonic resonances. Here, we present a general phenomenological approach to account for nonlocal material polarizabilities in nan…
Not to be confused with metal studies, music criticism, ethnography, or sociology, Helvete: A Journal of Black Metal Theory is a speculative and creative endeavor, one which seeks ways of thinking that count as Black Metal events — and indeed, to see how Black Metal might count as thinking. Theory of Black Metal, and…
The penetration depth of surface plasmons is commonly determined empirically from the observed response for adsorbate loading on gold surface plasmon resonance (SPR) substrates. However, changes in the SPR spectrum may originate from both changes in the effective refractive index near the metal surface and changes in…
We report for the first time successful growth of magnetic thin films containing the Gd5(SixGe1−x)4 phase, which is expected to show giant magnetocaloric properties. The film was deposited by Pulsed Laser Deposition (PLD) on a (001) silicon wafer at 200 °C from a polycrystalline Gd5Si2.09Ge1.91 target prepared by arc…
To explore the dependences of polyaniline (PANI) morphology on the oxidant and the initial pH value (referred to as 'pH-initial') of the reaction system, a series of oxidative polymerization experiments on aniline using chloroaurate acid (HAuCl4) as the oxidant are carried out in aqueous solutions with different value…