Materials Literature
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This paper gives a brief survey over some recent work on surface coatings for energy efficiency and solar applications. Specifically, it covers coatings for - selective absorption of solar energy (for solar collectors), - selective emission of infrared radiation in the 8-13 μm range (for passive cooling devices), - vi…
We examine a quantum mechanical model for the enhancement of fluorescence yield and photochemical rates by the presence of small particle capable to sustain electromagnetic resonances. The sphere lowers the absorption and emission efficiency by taking energy from the molecule and storing it into nonradiative modes, en…
Pb(Zr 0.525 Ti 0.475 )O 3 piezoceramics, both unmodified and doped with 2 wt% Bi 2 O 3 or Nb 2 O 5 , were prepared by the usual techniques, using sintering temperatures from 900° to 1250°C. The microstructural data showed that the sintering temperature which produces minimum porosity is altered by the oxide additions.…
By neglecting certain terms in the Hamiltonian (of importance only in the immediate neighbourhood of the threshold energy) we are able to write an exact expression for the photoemission intensity which involves the standard time inverted LEED state and broadened hole-states. If inelastic extrinsic losses are neglected…
Isothermal demixing process of binary polymer mixtures of SBR (styrene–butadiene random copolymer) and polybutadiene at deep quench depths was investigated by time-resolved light scattering technique. The results indicated that the systems undergo extremely slow spinodal decomposition of the type as adequately charact…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTetracyclo[5.1.0.01,6.02,7]octane, a [1.1.1]propellane derivative, and a new route to the parent hydrocarbonKlaus Semmler, Guenter Szeimies, and Johannes BelznerCite this: J. Am. Chem. Soc. 1985, 107, 22, 6410–6411Publication Date (Print):October 1, 1985Publication History P…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic spectra of cis- and trans-azobenzenes: consequences of ortho substitutionChristine L. Forber, Eric C. Kelusky, Nigel J. Bunce, and Michael C. ZernerCite this: J. Am. Chem. Soc. 1985, 107, 21, 5884–5890Publication Date (Print):October 1, 1985Publication History Pub…
The crystal structures of ZrO 2 and HfO 2 (P2 1 /c) were refined in detail from X‐ray powder diffraction data. The precision obtained for the atom positions for both compounds is comparable to that of previous single‐crystal work.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe nature of the nonframework aluminum species formed during the dehydroxylation of H-YR. D. Shannon, K. H. Gardner, R. H. Staley, G. Bergeret, P. Gallezot, and A. AurouxCite this: J. Phys. Chem. 1985, 89, 22, 4778–4788Publication Date (Print):October 1, 1985Publication His…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTX-ray scattering from poly(thiophene): crystallinity and crystallographic structureZ. Mo, K. B. Lee, Y. B. Moon, M. Kobayashi, A. J. Heeger, and F. WudlCite this: Macromolecules 1985, 18, 10, 1972–1977Publication Date (Print):October 1, 1985Publication History Published onli…
Calculations of bulk and surface defect energies were used to develop a model of the grain structure of doped BaTiO 3 , Segregation processes are expected as a consequence of thermo‐dynamic and kinetic factors and result in the development of n‐i‐n junctions at intergranular contacts, thus leading to the observed PTCR…
The relationship between short-range icosahedral order in metallic glasses and long-range order in icosahedral crystals is explored. Metallic-glass structure factors are assumed to describe liquids in metastable equilibrium just above the glass transition. A density-functional mean-field theory is then used to search…
The structure and properties of thin amorphous carbon films are critically dependent upon the preparation conditions. Hydrogenated amorphous carbon films, prepared by both ion beam sputtering and glow discharge techniques, have been investigated by solid-state 13C magic angle spinning nuclear magnetic resonance measur…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDimerization and stacking in transition-metal bisdithiolenes and tetrathiolatesSantiago Alvarez, Ramon Vicente, and Roald HoffmannCite this: J. Am. Chem. Soc. 1985, 107, 22, 6253–6277Publication Date (Print):October 1, 1985Publication History Published online1 May 2002Publis…
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTX-ray photoelectron spectroscopy of thermally treated silica (SiO2) surfacesMark L. Miller and Richard W. LintonCite this: Anal. Chem. 1985, 57, 12, 2314–2319Publication Date (Print):October 1, 1985Publication History Published online1 May 2002Published inissue 1 October 198…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and physical properties of the new layered ternary chalcogenides tantalum nickel sulfide (Ta2NiS5) and tantalum nickel selenide (Ta2NiSe5)Steven A. Sunshine and James A. IbersCite this: Inorg. Chem. 1985, 24, 22, 3611–3614Publication Date (Print):October 1, 1985Pub…
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
An alternative and somewhat systematic definition of the vector spherical harmonics, in analogy with the commonly used scalar spherical harmonics, is presented. The new set of vector spherical harmonics satisfies the properties of orthogonality and completeness, and is compared with other existing definitions of vecto…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConformational characterization of Bombyx mori silk fibroin in the solid state by high-frequency carbon-13 cross polarization-magic angle spinning NMR, x-ray diffraction, and infrared spectroscopyTetsuo Asakura, Akio Kuzuhara, Ryoko Tabeta, and Hazime SaitoCite this: Macromo…