Materials Literature
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Introduction The frontier of today's scientific and engineering research is undoubtedly in the realm of nanotechnology: the imaging, manipulation, fabrication, and application of systems at the nanometer scale. To maintain the momentum of current research and industrial progress, the continued development of new state…
Overview of imaging using FIB Scanning electron microscopes (SEM), transmission electron microscopes (TEM), and scanning TEM (STEM) have been used for structural observation of microdevices, advanced materials, and biological specimens. In recent years, a gallium (Ga) focused ion beam (FIB) has been used for preparing…
C60 fullerene peapods and double-walled carbon nanotubes (DWCNTs) containing highly 13C enriched C60 and inner tubes, respectively, are studied using Raman spectroscopy and in situ Raman spectroelectrochemistry in order to follow the influence of 13C enrichment on the vibrational pattern of these carbon nanostructures…
The optical properties of nematic liquid crystals have been extensively exploited in the production of devices working in the visible range of the spectrum. These same properties can be employed to make devices that function in the near infrared as required for telecommunications applications. However, it is generally…
A novel identification technique suited to security screening of liquid and amorphous substances with x-ray diffraction (XRD) is presented. The starting point is to fit the high momentum region (independent atom regime) of the XRD profile with a free-atom scatter function corresponding most closely to the effective at…
We report our progress in the growth of periodic and depth-graded multilayers in the APS rotary deposition system, a machine designed for fabrication of films tens of microns thick with thousands of layers. A computational method was employed to design depth-graded multilayers for use as wide-angular bandpass reflecti…
Abstract Cycloreversion (ring‐opening) process of a photochromic diarylethene derivative in PMMA polymer solid film was investigated by means of picosecond laser photolysis. As was observed in our previous work in solution phase, the drastic enhancement of the cycloreversion reaction yield was observed under picosecon…
Motivated by recent experimental results on model binary colloidal mixtures, especially for the glass transition, we investigate the phase diagram of two models of asymmetric binary mixtures: the hard sphere and the Asakura-Oosawa mixtures. This includes the binodals and the glass transition line, computed in the effe…
We report dynamic Monte Carlo simulations of polymer crystal nucleation initiated by prior spinodal decomposition in polymer solutions. We observed that the kinetic phase diagrams of homogeneous crystal nucleation appear horizontal in the concentration region below their crossovers with the theoretical liquid-liquid s…
An analysis scheme for the formation of the inclusion complexes in water is presented. It is exemplified for the case where the host is alpha-cyclodextrin and the guest is a linear alcohol (1-propanol to 1-octanol) or the isomers of 1-pentanol. Eight transfer isobaric heat capacities, DeltatCp, involving different ini…
The results of in situ manipulation and electrical transport characterization of individual multiwalled carbon nanotubes (MWCNTs) grown on a nickel tip by using a piezoelectric nanomanipulation system operating in a scanning electron microscope chamber have been reported. The growth of MWCNT directly on nickel wire by…
A facile and novel method for the synthesis of magnetite-polymer hybrid microspheres with controllable structure is reported. On the basis of the interactions between polymers and magnetic nanocrytals, which are coated with a primary oleic acid layer, a variety of magnetic microspheres with well-tailored structure are…
This PDF file contains the front matter associated with SPIE Proceedings Volume 6648, including the Title Page, Copyright information, Table of Contents, Introduction, and the Conference Committee listing.
Abstract We investigated the relationship between the morphology and viscoelasticity of epoxy/silica hybrid materials manufactured via two different processes: simultaneous formation of epoxy and silica phases and sequential formation of silica phase in the prepared epoxy phase. The glass transition phenomena of the h…
Ardennite-(V), ideally Mn4[Al4(AlMg)][Si5V]O22(OH)6, is the analogue of ardennite, ideally Mn4[Al4(AlMg)][Si5As]O22(OH)6, with V dominant at the T4 site. The history of the discovery of ardennite is outlined, with special accent on its chemical composition; revision of the old literature evidenced that even if vanadiu…
A one-step process for the synthesis of La 2 NiO 4+ δ (LNO) mixed-conductive oxide was reported. During the process, LNO powders were synthesized via the combustion of mixtures with the desired metal ions as cation precursors and glycine as fuel. X-ray diffraction (XRD), scanning electron microscopy (SEM), dilatometry…
Abstract Nucleation parameters such as solubility, induction period, interfacial energy and metastable zone width have been investigated for the aqueous solution growth of a semi‐organic nonlinear optical (NLO) material of L‐Proline cadmium chloride monohydrate (L‐PCCM) single crystal. Metastable zone width and induct…
Density functional calculations are performed to study the H-atom diffusion on titanium dioxide (110) surface in the cases of water-molecule dissociation and splitting of the adjacent hydroxyl OH pair. It is shown that, when a water molecule is adsorbed at a surface oxygen-vacancy site, a fragment H atom of the water…
Films of hyaluronan (HA) and a phosphorylcholine-modified chitosan (PC-CH) were constructed by the polyelectrolyte multilayer (PEM) deposition technique and their buildup in 0.15 M NaCl was followed by atomic force microscopy, surface plasmon resonance spectroscopy (SPR), and dissipative quartz crystal microbalance (Q…
The luminescence properties of doubly activated terbium aluminium garnet samples were investigated in the present study. Commercial Tb 3 Al 5 O 12 :Ce 3+ (TAG:Ce) shows the typical Ce 3+ ion luminescence of the allowed Ce 3+ d–f transition. Eu 3+ co-doping, however, reveals interesting results. In TAG:Ce, Eu, both Ce…