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Showing 1 to 20 of 53 for “"Thick films"”.
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Development of a reusuable atomic oxygen sensor using oxide thick films
The aim of this project was to develop a thick film sensor made of zinc oxide that would accurately respond to various fluxes of atomic oxygen (AO), allowing it to be regenerated after saturation. The sensors were manufactured using a thick film technique of screen printing over a substrate …
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DEVELOPMENT OF MAGNETO-OPTIC SENSORS WITH GALLIUM IN BISMUTH DOPED RARE-EARTH IRON-GARNET THICK FILMS
… Using these results we focused on in-plane films to create 8 layer stacks of 500 um thick films to achieve a minimum detectable field of 50 pT at 1 kHz. Unlike previous Magneto-Optic (MO) studies that typically used thin films of approximately 1um thickness, we used approximately 400um thick …
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Texture development in superconducting oxide/Ag thick films in the presence of a magnetic field (0-7 Tesla)
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1999.
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Deformation and Transformation Mechanisms of Polybutene and Poly(vinylidene Fluoride)
The deformation of thin films of polybutene (PB) and poly(vinylidene fluoride) (PVF$\sb2$) occurs by micronecking. Finite blocks are drawn off the edge of the microneck depending upon the orientation of the original crystalline lamellae comprising the spherulites with respect to the draw direction. …
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Angle resolved photoemission studies of silver-bromide
… photoemission data on randomly oriented thick films of metallic silver, thin films of randomly oriented polycrystalline AgBr and AgBrI, and epitaxially grown AgBr on an Ag (111) single crystal.
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Layer-by-layer assembly of conducting membranes for photoelectrochemical cells
… electrodes. Transparent mixed conducting polymer films with conductivity above 0.1 mS/cm are highly desirable for photoelectrochemical cell membrane applications. Mixed conducting polymer composite PEDOT:sPPO was incorporated into LbL films and the composition ratio of the film components was …
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Implantable ferrite antenna for biomedical applications
… with comparisons made for 5 and 10 µm thick films, as well as for 10 µm thick films with varying magnetic loss (tan δµ = 0.05, 0.1 and 0.3). Our simulations reveal that the addition of 10 µm thick magnetic layers has effectively lowered the resonant frequency by 70 MHz, while improving …
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The Impact of Morphology and Composition on the Resistivity and Oxidation Resistance of Metal Nanostructure Films
… high conductivity devices. Conductive inks for thick film applications utilizing inkjet, aerosol, and screen printing technologies are often comprised of expensive and rare silver particles. Thin film applications such as organic light emitting diodes (OLEDs) and organic photovoltaics (OPVs) …
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Synthesis, structure and magnetic properties of nanowires and films by electrodeposition
… of nanowires. Moreover, relatively thick FePt films by electrodeposition have been investigated. By doping Ag or using Ag underlayer, out-of plane anisotropy and high coercivity films have been achieved. The relatively thick films have the potential applications for MEMS and …
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Reactive DC magnetron sputtering of ultrathin superconducting niobium nitride films
… sputtering was used to deposit few-nanometer-thick films of niobium nitride for fabrication of superconducting devices. Over 1000 samples were deposited on a variety of substrates, under various chamber conditions. Sheet resistance, thickness and superconducting critical temperature were …
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Nanometer-thick oxide films for pyroelectric energy conversion
… conversion is possible using pyroelectric thin films which allow fast thermal cycling and high electric fields. Published studies, however, have not investigated pyroelectric energy conversion in nanometer-thick films. In addition, there is a lack of suitable techniques for characterization of …
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Critical currents in granular high temperature superconductors
… (H-S) grains of melt-processed YBCO thick films. These indicated that within each H-S grain the current is constrained to radial paths through the centre of the grain. This has major implications for the analysis of any measurements carried out on these samples, as well as for …
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Comparison of packed and wide-bore, open-tubular gas chromatographic columns
… Wide-bore, open-tubular (WBOT) columns with thick films have higher sample capacities than conventional narrow-bore capillary columns and can be used in unmodified packed-column gas chromatographs. The majority of gas chromatographic analyses are still performed using packed columns. Many …
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Molecular insight into the slip of water and ions along single layer graphene in aqueous media
… affects the molecular slippage of nanometer thick films of aqueous electrolytes along the graphene surface. In the light of the shear-assisted thermally activated theory, water molecules along the graphene plane are very mobile when subjected to shear. However, upon addition of an …
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Low Impurity Content GaN Prepared via OMVPE for Use in Power Electronic Devices: Connection Between Growth Rate, Ammonia Flow, and Impurity Incorporation
… and chemical defects. In addition, very thick films can be grown without cracking due to exact lattice and thermal expansion coefficient match. Through chemical and electrical measurements, this work aims to find growth conditions which reduces contamination without a severe impact on …
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Development of (Re)BaCuO Coated Conductors by Liquid Phase Epitaxy
… LPE has been successfully used to grow YBCO thick films with both c- and a,b-orientations on (110) NdGaO3 substrates and pure c-oriented films on YBCO seeded (100) MgO and (100) SrTiO3 under carefully controlled growth temperature and undercooling. The film growth mode (c- or a,b-oriented) is …
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Theory and fabrication of evanescently-coupled photoluminescent devices
… permits use of a thin film geometry, whereby thick films and their associated inefficiencies can be avoided. Specifically, QDs are stabilized in the cladding of a waveguide and excited by the evanescent field of the guided modes rather than by direction illumination. As an additional …
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Second-Order Nonlinear Optical Characteristics of Nanoscale Self-Assembled Multilayer Organic Films
Ionically self-assembled monolayer (ISAM) films are typically an assemblage of oppositely charged polymers built layer by layer through Coulombic attraction utilizing an environmentally friendly process to form ordered structures that are uniform, molecularly smooth and physically robust. ISAM …
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(i)chromatographic Methods For Solute Descriptor Determinations (ii)ruthenium Substrate-Catalyzed Growth Of Nickel Nitride Thin Films By Atomic Layer Deposition
… can be used to obtain smooth, high purity thin films at low deposition temperatures, and also for the deposition of materials which were found challenging so far using thermal and energy enhanced atomic layer deposition methods. Substrate-dependent catalytic thermal ALD technique can be …
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