A reversible cross-linked polymer network based on conjugated polypseudorotaxanes
A supramolecular cross-linked conjugated polymer network induced by controllable acid–base reactions leads to a reversible change in the fluorescence intensities.
Materials Literature
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Facile synthesis of phosphine free ultra-small PbSe nanocrystals and their light harvesting studies in ETA solar cells
Ultra-small PbSe nanocrystals (NCs) were synthesized via a 'one-pot' approach in olive oil as the reaction medium and capping agent. The optical spectra showed discernible blue shifts in the absorption band edges (570-780 nm) due to strong quantum confinement effects and photoluminescence (PL) spectra showed significa…
Large area uniformly oriented multilayer graphene with high transparency and conducting properties derived from highly oriented polyethylene films
We present here the synthesis and characterization of well-ordered multilayer graphene from highly oriented polyethylene films. The obtained graphene films exhibit good optical and electrical properties.
Microwave flash annealing for stability of chemically doped single-walled carbon nanotube films on plastic substrates
Microwave flash annealing dramatically enhances the environmental stability of AuCl3-doped single-walled carbon nanotube (SWCNT) films on plastic substrates using fast microwave nanoheating to produce a large temperature difference between the films and the substrates. Within one second, the microwave nanoheating rapi…
Subwavelength imaging in the visible range using a metal coated carbon nanotube forest
We demonstrate subwavelength imaging in the visible range by using a metal coated carbon nanotube forest. Under 532 nm illumination, a 160 nm separated double slit is resolved. This corresponds to the resolution of 0.3 wavelength. By controlling the growing conditions and with the help of the microtoming technique, we…
Effect of ozone exposure on the electrical characteristics of high-purity, large-diameter semiconducting carbon nanotubes
In this study, we have elucidated the interactions between ozone and carbon nanotubes by monitoring the characteristics of field-effect transistors based on polymer-sorted, large-diameter semiconducting carbon nanotubes. The drain-source current of these transistors initially increases with ozone exposure and then it…
Structure formation in binary Al-TM (TM = Mn, Co, Ni, Cu) melts
The structures of binary Al-TM (transition metal TM = Mn, Co, Ni, Cu) melts at near-liquidus temperatures are studied by X-ray diffraction and simulation using the reverse Monte Carlo method. The melts are found to have chemical local atomic ordering, and this ordering depends on the nature and content of TM. Chemical…
FUEL-OXIDIZER MIXTURES: THEIR STABILITIES AND BURN CHARACTERISTICS
A survey of the stability and performance of 11 solid oxidizers and eight fuels was performed by differential scanning calorimetry (DSC), simultaneous differential thermolysis (SDT), and hot-wire ignition. Fuels used in the study were sugars and alcohols as well as sulfur and charcoal; all but charcoal melted below 20…
Nonreciprocal and magnetically scanned miniaturized leaky-wave antennas using coupled transmission lines
This paper presents a new class of magnetically scanned leaky wave antennas (LWAs), incorporating ferrite (or possibly magnetoelectric composite), for wide angle beamsteering. Using the ferrite’s tunable permeability beamsteering is achieved by controlling the external bias field. This is unlike most leaky-wave antenn…
HAXPES study of Sn core levels and their plasmon loss features
Hard X-ray Photoelectron spectra have been recorded for elemental Sn. Electron loss features, prominent in all core level spectra of the metal, are analyzed at several photo energies for the 3p core level. For higher photoelectron kinetic energies the intensity of the plasmonic features follows a simple exponential la…
Cathodoluminescence of Double Layers of Phosphor Particles
We present radiance measurements of particle layers of ZnO:Zn, Y 2 O 3 :Eu and Y 2 O 2 S:Eu bombarded with electrons at anode voltages between 1 and 15 kV. The layers described in this work refer to single component layers, double layers and two component mixtures. The phosphor layers are deposited on ITO-coated glass…
Solvothermal synthesis of Co 3 O 4 /Al 2 O 3 hollow core–shell microspheres for the catalytic oxidation of CO
Co <sub>3</sub> O <sub>4</sub> /Al <sub>2</sub> O <sub>3</sub> hollow core–shell microspheres, which exhibit a large surface area, a mesoporous structure and an excellent CO catalytic performance, have been synthesized by a solvothermal process.
Fabricating Silver Nanoparticles on Thin Silicon Nanowalls for Highly Sensitive Surface-Enhanced Raman Scattering
Metal nanoparticles with nanoscale spacing are promising materials for the detection of single molecules through surface-enhanced Raman scattering. To increase the sensitivity of nanoparticles through the use of a nanoscale substrate, we fabricated various Ag NP–decorated silicon nanowalls for the Raman spectroscopic…
Corrosion Behavior Study of 22MnB5 Steel and its Weld Using Electrochemical Method
Corrosion behaviors of ultra high strength steel 22MnB5 and its weld were studied based on electrochemical method in the present work. Electrochemical measurements such as Tafel polarization curve and electrochemical impedance spectroscopy were performed to investigate the corrosion mechanisms of 22MnB5 steel and its…
3-NO 2 -5,10,15-triarylcorrolato-Cu as a versatile platform for synthesis of novel 3-functionalized corrole derivatives
β-Nitrocorroles are potentially valuable platforms for the preparation of a wide range of more elaborated corrole derivatives possessing unique chemical functionalities and electronic properties. Here we report our results on the chemical manipulation of a copper 3-NO2-triarylcorrolate using different organic reaction…
Preparation of Cu-doped nickel oxide thin films and their properties
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation V. Gowthami, M. Meenakshi, N. Anandhan, C. Sanjeeviraja; Preparation of Cu-doped nickel oxide thi…
Transverse distortion of continuous-cast slab
At OAO Ural’skaya Stal’, the profile of 270 × 1200 mm continuous-cast slab is often distorted: the narrow faces become convex and the broad faces become concave near the edge. The dependence of the distortion on the length of the system supporting the billet’s narrow faces is investigated. Statistically significant re…
A TRI-BAND ELECTROMAGNETIC ABSORBER WITH INSENSITIVE PROPERTIES
In this paper, we present a tri-band electromagnetic absorber with insensitive properties. A rotational symmetry structure with a metallic ground is proposed for the design of the metamaterial absorber. Calculation results show that the absorber has three perfect absorption points at 4.76 GHz, 7.61 GHz and 10.84 GHz w…
High renewable content sandwich structures based on flax-basalt hybrids and biobased epoxy polymers
In the last years, a growing interest in the development of high environmental efficiency materials has been detected and this situation is more accentuated in the field of polymers and polymer composites. In this work, green composite sandwich structures with high renewable content have been developed with core cork…
Digital Image Correlation Measurement of Localized Deformation in Carbon Steel in the Presence of Hydrogen
Although there have been many reports related to localized plastic deformation in the presence of hydrogen, this process has not been clearly elucidated to date. In our previous report, we conducted tensile tests on hydrogen-charged carbon steel S25C. Using the digital image correlation method, we were able to measure…