Materials Literature
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The use of carbon nanotubes in photovoltaics is still challenging due to different issues connected to their synthesis, purification, functionalization, processing and device integration. From this perspective at first we review on selected contributions dealing with the above issues; then we focus on the advantages a…
It is well known that properties of materials are largely determined by their structures. Here we introduce the special double-structural materials, which are composed of micrometre and nanometre building blocks and commonly exist in nature. This review mainly focuses on recent developments of double-structural and fu…
We report the origin of the effect of nanoscale confinement on the local viscosity of entangled polystyrene (PS) films at temperatures far above the glass transition temperature. By using marker x-ray photon correlation spectroscopy with gold nanoparticles embedded in the PS films prepared on solid substrates, we have…
Tell the atoms where to go: By manipulating the rate at which Ag atoms were generated from a precursor, the nucleation and growth of Ag on Pd nanocubes with six equivalent {100} facets were controlled to generate three different types of bimetallic nanocrystals: Pd–Ag hybrid dimers, Pd–Ag eccentric nanobars, and [emai…
The strain dependence of conductance of monolayer graphene has been studied experimentally here. The results illustrate the notable transitions: the slight increase, the dramatic decrease, and the sudden dropping of the conductance by gradually increasing the uniaxial strain. The graphene conductance behaves reversibl…
The adsorption of graphene on Ni(111) has been investigated on the basis of the adiabatic-connection fluctuation-dissipation theorem in the random phase approximation (RPA). Although we find a significant hybridization between the graphene $\ensuremath{\pi}$ orbitals and Ni ${d}_{{z}^{2}}$ states at a binding distance…
Graphene consists of a monolayer of sp(2) bonded carbon atoms and has attracted considerable interest over recent years due to its extreme mechanical, electrical, and thermal properties. Graphene nanocomposites have naturally begun to be studied to capitalize upon these properties. A range of complex chemical and phys…
We present a Monte Carlo method for obtaining solutions of the Boltzmann equation to describe phonon transport in micro- and nanoscale devices. The proposed method can resolve arbitrarily small signals (e.g., temperature differences) at small constant cost and thus represents a considerable improvement compared to tra…
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTSpherulitesAlexander G. Shtukenberg*†‡, Yuri O. Punin‡, Erica Gunn#, and Bart Kahr*†#View Author Information† Department of Chemistry, New York University, 100 Washington Square East, New York City, New York 10010, United States ‡ Department of Crystallography, Geological Fac…
Organic thin-film transistors (OTFTs) show promising applications in various chemical and biological sensors. The advantages of OTFT-based sensors include high sensitivity, low cost, easy fabrication, flexibility and biocompatibility. In this paper, we review the chemical sensors and biosensors based on two types of O…
A new conjugated aromatic poly[(furan-2, 5-diyl)-co-(benzylidene)] has been prepared by polycondensation of benzaldehyde and furan catalyzed by Maghnite-H + . Maghnite-H + is a montmorillonite sheet silicate clay, which exchanged with protons. These polymers can be dissolved in high polar solvents such as DMSO, DMF, T…
In this paper we report the synthesis of a series of new Mn/Ti containing perovskites, La1−xMnxMn1−xTixO3−δ, for investigation of their potential for use as solid oxide fuel cell electrodes, particularly anodes. Single-phase samples could be achieved for x ≤ 0.4. Above this level, La2Ti2O7 impurities were found. Condu…
Superhydrophobic surfaces have been the focus of both industry and academic research. The high water repellency exhibited by these surfaces is based on a natural phenomenon (i.e. Lotus effect). Superhydrophobicity is explained by the Wenzel and Cassie-Baxter model. According to this model, the air trapped in micro-/na…
This book is a treatment on the foundational knowledge of Nuclear Science and Engineering. It is an outgrowth of a first-year graduate-level course which the author has taught over the years in the Department of Nuclear Science and Engineering at MIT. The emphasis of the book is on concepts in nuclear science and engi…
We investigated thermal behavior of spin-coated films of P(HB-co-HHx)/PEG blends by using infraredreflection absorption (IRRAS) spectroscopy and 2D correlation spectroscopy. Based on 2D IRRAS correlation spectra, we could determine the sequence of spectral intensity changes with increasing temperature that PEG band ch…
Rhodamine B dye (RB) has been introduced into the mesoporous silica (SBA15) and Ag anchored mesoporous silica by applying solution impregnation method. Surface treatment of SBA15 with 3-aminopropyltrimethoxysilane (APTMS) facilitates selective anchoring of the RB molecules on SBA15. The photoluminescence spectra of RB…
E-mail: swkim@ajou.ac.krReceived August 30, 2011, Accepted September 16, 2011Key Words : Cadmium oxide, Nanocrystal, Size control, Shape controlMetal oxide nanocrystals have attracted considerableattention owing to their specific properties and potentialapplication in various fields. For instance, metal oxidenanocryst…
A series of thermochromic polypropylene foils were prepared by embedding various leuco dye-developer-solvent systems in the polymer matrix. Bisphenol A, laurylgallate, ethylgallate and p-hydroxybenzoic acid methyl ester were used as developers, crystal violet lactone and 3,3-bis-(1-n-butyl-2-methyl-3-indolyl)-phthalid…
Micromechanics of Heterogeneous Materials Scaling and Homogenization in Spatially Random Composites Asymptotic Homogenization for Composites and Thin-Walled Composite Structures Stroh-Like Formalism for General Laminated Plates Elastic Waves and Inverse Problems in Anisotropic Materials Models for Laminated Structures…
The purpose of this research study was to evaluate two novel oxygen scavengers based on lecithin and sodium erythorbate using a supercritical fluid methodology to impregnate it in a porous matrix. A zero-order model was used to describe the oxygen absorption kinetics of these absorbers suitable for food and beverage p…