Materials Literature
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The effect of mis-match strain on the structural, electronic, and optical properties in SnO 2 epitaxial thin films has been systematically investigated by the experimental and theoretical methods. Our results indicate that the tensile strain exists in the thin film and decreases with the thickness of epitaxial samples…
We report the observation of stable optical transitions in nitrogen-vacancy (NV) centers created by ion implantation. Using a combination of high temperature annealing and subsequent surface treatment, we reproducibly create NV centers with zero-phonon lines (ZPL) exhibiting spectral diffusion that is close to the lif…
Chiral plasmonic films have been prepared by incorporating gold nanorods (NRs) in a macroscopic cholesteric film formed by self-assembled cellulose nanocrystals (CNCs). Composite NR-CNC films revealed strong plasmonic chiroptical activity, dependent on the photonic properties of the CNC host and plasmonic properties o…
We report on the first demonstration of p-type doping in large area few-layer films of (0001)-oriented chemical vapor deposited MoS2. Niobium was found to act as an efficient acceptor up to relatively high density in MoS2 films. For a hole density of 3.1 × 1020 cm−3, Hall mobility of 8.5 cm2 V−1 s−1 was determined, wh…
Recently, porous hydrophobic/oleophilic materials (PHOMs) have been shown to be the most promising candidates for cleaning up oil spills; however, due to their limited absorption capacity, a large quantity of PHOMs would be consumed in oil spill remediation, causing serious economic problems. In addition, the complica…
The application of highly ordered TiO 2 nanotube arrays (NTAs) for energy storage devices such as supercapacitors has been attractive and of great interest owing to their large surface area and greatly improved charge-transfer pathways compared to those of nonoriented structures. Modification of the semiconductor natu…
In this Letter, molybdenum (Mo) is introduced and evaluated as an alternative contact metal to atomically-thin molybdenum disulphide (MoS2), and high-performance field-effect transistors are experimentally demonstrated. In order to understand the physical nature of the interface and highlight the role of the various f…
Over recent years, research on thiolate-protected gold clusters Au(m)(SR)n has gained significant interest. Milestones were the successful determination of a series of crystal structures (Au102(SR)44, Au25(SR)18, Au38(SR)24, Au36(SR)24, and Au28(SR)20). For Au102(SR)44, Au38(SR)24, and Au28(SR)20, intrinsic chirality…
Hollow nanostructures are of great interest for a wide variety of applications. Despite the great advances, synthesis of anisotropic hollow structures is still very challenging. In this work, we have developed a simple sacrificial template method to synthesize uniform Ni(x)Co(3-x)S4 hollow nanoprisms with tunable comp…
We numerically study transmission through an angled silver grating with relatively large slits. It has been discussed that this kind of structure can show properties of transparency and conductivity similar to those of Indium tin oxide at perpendicular incidence. The transparency is due to a ratio of silver/air about…
International audience
International audience
International audience
Low conversion copolymerization of N-vinyl-2-pyrrolidon M.W = (111.14) VP (monomer-1) has been conducted with acrylic acid AA and methymethacrylate MMA in ethanol at 70ºC , using Benzoyl peroxide BPO as initiator . The copolymer composition has been determined by elemental analysis. The monomer reactivity ratios have…
In the present paper, calcium chloride-anodized alumina composites were investigated for water vapor sorption properties. Aluminum plates were anodized in a sulfuric acid bath or an oxalic acid bath to form porous aluminum oxide films on the surfaces. The anodized oxide films were impregnated with CaCl2, and then were…
El libro contiene el refinamiento estructural de quince hexacianoferratos (II, III), donde doce estructuras cristalinas se reportan por primera vez. Ademas, se analiza la distorsion ortorrombica que aparece en algunas de las estructuras debido a la influencia de los cationes de compensacion de carga presentes en las m…
National audience
A topological insulator is a novel quantum state, characterized by symmetry-protected non-trivial edge/surface states. Our first-principle simulations show the significant effects of the chemical decoration on edge states of topological Bi(111) bilayer nanoribbon, which remove the trivial edge state and recover the Di…
Metamaterials have the unique property of exhibiting anti-parallel group and phase velocity as well as the ability to have a negative permittivity/permeability depending on their design. When a metamaterial composite right-left hand transmission line structure is implemented through the use of microstrip technology, i…
This report aims to describe the testing program used for the verification of a new adhesive for use by the Australian Regular Army’s Aviation Corp for field repairs of ballistic protection panels. The testing had to verify that the adhesive could withstand minimal surface treatment, different materials and the effect…