Materials Literature
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Structural properties and thermal stability of CdZnO/ZnO heterostructures grown on sapphire substrate by metal-organic vapor phase epitaxy (MOVPE) have been studied. Zn/Cd interdiffusion and Cd evaporation appear as key factors limiting the thermal stability of CdZnO/ZnO heterostructures. Cd diffusion in MOVPE ZnO is…
Based on first-principles calculations, we suggest that the PZn-2VZn complex is the dominant acceptor in phosphorus-doped ZnO with a calculated transition level of 150 meV. We suggest that the out-diffusion of zinc interstitials will indirectly favor the formation of the PZn-2VZn complex. According to this mechanism,…
Biocompatible Magnesium Alloys as Degradable Implant Materials - Machining Induced Surface and Subsurface Properties and Implant Performance
Temperature dependence of the band gap energy and sub-band gap absorption tails in 3D assemblies of close packed weakly quantized CdSe quantum dots deposited as thin films was studied. The range from cryogenic temperatures (∼10 K) up to 340 K was covered. Excitonic absorption peaks were not observed even at temperatur…
Abstract This study investigates the role of carbon (C) in room‐temperature (RT) ferromagnetic C:ZnO films. RT ferromagnetism can be observed in air‐annealed C:ZnO samples. However, no feature that could be attributed to the incorporation of carbon at O sites (CO) was observed. An analysis of MCD spectra of the ferrom…
A unique manufacturing route to build a layer-by-layer (LBL) structure of two-dimensionally ordered, free-standing β-nickel hydroxide nanosheets that are fully electrically addressed with single-wall carbon nanotube fabrics is demonstrated. The performance of the system is verified by a comparative study on the differ…
The effect of quasi-hydrostatic pressure upon the ferromagnetic ground state of magnetodielectric, double-perovskite La${}_{2}$MnNiO${}_{6}$ is investigated using x-ray absorption spectroscopy and diffraction measurements in a diamond anvil cell. The Mn-O-Ni superexchange interaction that gives rise to ferromagnetism…
Abstract Thermoplastic polyurethane/silica nanocomposite fibers with good mechanical properties were prepared by electrospinning, using colloidal silica as the source of silica and dimethyl formamide as the solvent. The fiber morphology was examined by field emission scanning electron microscopy. The average fiber dia…
Approaches to the adequate homogenization of optical metamaterials are becoming more and more complex, primarily due to an increased understanding of the role of asymmetric electrical and magnetic responses, in addition to the nonlocal effects of the surrounding medium, even in the simplest case of plane-wave illumina…
The formation and crystallization of disordered nanosized ZnO resulting from the thermal decomposition of nanocrystalline hydrozincite [Zn 5 (CO 3 ) 2 (OH) 6 ] has been observed and investigated during pulse annealing experiments up to 625 °C in air or vacuum by electron paramagnetic resonance of trace amounts of subs…
Abstract The batch cooling solution crystallization of ammonium oxalate was performed in water at various constant cooling rates. Measurements of the solute concentration were obtained using in situ attenuated total reflectance fourier transform infrared (ATR‐FTIR) spectroscopy, and final estimates of the crystal size…
High-voltage electrode protrusion is one of the major causes of insulation failure in gas-insulated substation (GIS) equipment. The present research is designed to diagnose and assess the severity levels of the partial discharge (PD )provoked by high-voltage electrode protrusion on the GIS insulator surface. With the…
A study combining anion photoelectron spectroscopy and density functional theory calculations on the transition metal suboxide series, Nb(2)O(y)(-) (y = 2-5), is described. Photoelectron spectra of the clusters are obtained, and Franck-Condon simulations using calculated anion and neutral structures and frequencies ar…
Conventional shape memory polymers, such as shape memory polyurethanes (SMPU), can exhibit net two-way shape memory behavior (2WSM), i.e., upon heating and subsequent cooling, their macroscopic shapes change reversibly under an applied bias load. This paper is aimed at reporting similar 2WSM behavior, especially by fo…
We present quantum transport measurements of gates controlled parallel-coupled double quantum dot (PDQD) device on both bilayer and single layer graphenes. The interdot coupling strength can be effectively tuned from weak to strong by in-plane plunger gates. All the relevant energy scales and parameters can be extract…
Amyloid fibrils are a form of protein nanofiber that show promise as components of multifunctional bionanomaterials. In this work, native bovine insulin and bovine insulin that had been previously converted into amyloid fibrils were combined with poly(vinyl alcohol) (PVOH) via solution casting to determine the effect…
A process characterized by variable-valence metal (Mn, Co, Ni, etc) ion assisted reduction of graphene oxide with NaBH(4) heated at 90 °C for a short period of 1 h was developed to produce reduced graphene oxide (RGO), and the RGO sheets exhibited a homogeneous and stable dispersibility in water.
A FRET-based sensor protein presenting amyloid-like structures was successfully constructed for detecting the oligomeric assemblies of amyloid β-peptide (Aβ) wild-type and FAD-related mutants.
The strategy of metal doping was performed to improve surface-enhanced Raman scattering (SERS) performance for semiconductor TiO2 and deeply understand the contributing/controlling factors of semiconductor (TiO2)-to-molecule charge transfer (CT) mechanism contributed to SERS. The amount and intrinsic nature of doping…
The identification of novel binding-site conformations can greatly assist the progress of structure-based ligand design projects. Diverse pocket shapes drive medicinal chemistry to explore a broader chemical space and thus present additional opportunities to overcome key drug discovery issues such as potency, selectiv…