Single-crystal epitaxial thin films of the isotropic metallic oxides Sr1-xCaxRuO(3) (0

Epitaxial ferroelectric SrRuO3/Pb(Zr0.52Ti0.48)O3/SrRuO3 heterostructures have been fabricated employing isotropic metallic oxide electrodes on (100) SrTiO3 and (100) Si with an yttria stabilized zirconia buffer layer. The structures have been grown in situ by 90° off-axis sputtering, which allows the growth of uniform stoichiometric films over large areas with excellent step coverage. X-ray diffraction, Rutherford backscattering spectroscopy, and cross-sectional transmission electron microscopy reveal high crystalline quality and coherent interfaces. They exhibit superior fatigue characteristics over those made with metal electrodes, showing little degradation over 1010 cycles, with a large remnant polarization.

Highly conductive indium zinc oxide prepared by reactive magnetron cosputtering technique using indium and zinc metallic targets J. Vac. Sci. Technol. A 28, 425 (2010); 10.1116/1.3372806 Effects of Zn content on structural and transparent conducting properties of indium-zinc oxide films grown by rf magnetron sputtering High mobility undoped amorphous indium zinc oxide transparent thin films J. Appl. Phys. 98, 073703 (2005); 10.1063/1.2060957 Transparent conducting zinc oxide and indium-tin oxide films prepared by modified reactive planar magnetron sputtering J.

The pigments of Staphylococcus aureus were isolated and purified, and their chemical structures were determined. All of the 17 compounds identified were triterpenoid carotenoids possessing a C3o chain instead of the C4o carotenoid structure found in most other organisms. The main pigment, staphyloxanthin, was shown to be aD -glucopyranosyl 1-0-(4,4'-diaponeurosporen-4-oate) 6-0-(12methyltetradecanoate), in which glucose is esterified with both a triterpenoid carotenoid carboxylic acid and a C15 fatty acid. It is accompanied by isomers containing other hexoses and homologs containing C17 fatty acids. The carotenes 4,4'-diapophytoene, 4,4'-diapophytofluene, 4-4'-diapo-±-carotene, 4,4'-diapo-7,8,11,12-tetrahydrolycopene, and 4,4'-diaponeurosporene and the xanthophylls 4,4'-diaponeurosporenal, 4,4'-diaponeurosporenoic acid, and glucosyl diaponeurosporenoate were also identified, together with some of their isomers or breakdown products. The symmetrical 4,4'-diapostructure was adopted for these triterpenoid carotenoids, but an alternative unsymmetrical 8'-apostructure could not be excluded.

The dependence of the a-c response of iridium oxide films upon thickness, potential, and pH was explored in sulfuric and perchloric acid solutions. For concentrations greater than 0.1M, the response function closely resembled that for an injection process diffusively spreading from one interface throughout the film. The response time shifted by a factor of 10 5 with the potential drop across the film. A porous film model is suggested in which response is determined by the mobility of reduced lattice sites, the diffusion coefficient being controlled by a hydrogen ion exchange current within the pores. * Electrochemical Society Active Member. Key worr impedance, anodic films, electrochromism. ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 132.239.1.231 Downloaded on 2015-06-02 to IP ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 132.239.1.231 Downloaded on 2015-06-02 to IP

Electroactive poly(aniline) films, which are electronic conductors in their oxidized form, can be electrochemically formed on metal electrode surfaces. Above +0.8 VSCE in acid solutions, oxidized films undergo a partially reversible transition to an insulating state. Impedance measurements have been used to characterize the electrical properties of these films under potentiostatic conditions and during potential cycling. In addition to probing their electronic conductivity, such measurements yield information regarding ionic conduction, charge capacity, and relaxation processes. The gradual loss of activity which occurs in the oxidized, insulating state is accompanied by a major loss of electronic conductivity and a lesser decrease in charge capacitance.

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