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  1. No Access

    Article

    Growth and Characterization of GaN Nanowires for Hydrogen Sensors

    We report on the growth and characterization of high-quality GaN nanowires for hydrogen sensors. We grew the GaN nanowires by catalytic chemical vapor deposition (CVD) using gold thin films as a catalyst on a ...

    Jason L. Johnson, Yongho Choi, Ant Ural, Wantae Lim… in Journal of Electronic Materials (2009)

  2. No Access

    Article

    ZnO and Related Materials for Sensors and Light-Emitting Diodes

    ZnO is an attractive material for ultraviolet (UV) light emitters and detectors, and transparent thin-film transistors. It is also readily synthesized in the form of nanostructures. In this paper we discuss th...

    S.J. Pearton, W.T. Lim, J.S. Wright, L.C. Tien, H.S. Kim… in Journal of Electronic Materials (2008)

  3. No Access

    Article

    An investigation of the geometric controls on the morphological evolution of small-scale salt terrains, Cardona, Spain

    Small-scale terrains on salt materials were surveyed with a Total Station and a series of digital elevation models (DEMs) constructed. Two sets of observations were made, eight months apart, during which the t...

    D. N. Mottershead, W. J. Duane, R. J. Inkpen, J. S. Wright in Environmental Geology (2008)

  4. No Access

    Article

    Ir/Au Ohmic Contacts on Bulk, Single-Crystal n-Type ZnO

    Purpose: Need for reliable, thermally stable Ohmic metallizations for ZnO. Because of difficulties with current common contact metals, there exists a heavy desire for metals with high melting temperatures and ...

    J. S. Wright, R. Khanna, L. Stafford, B. P. Gila… in MRS Online Proceedings Library (2007)

  5. No Access

    Article

    Effect of Cryogenic Temperature Deposition of Various Metal Contacts on Bulk Single-Crystal n-Type ZnO

    The effect of cryogenic temperatures during metal deposition on the contact properties of Pd, Pt, Ti, and Ni on bulk single-crystal n-type ZnO has been investigated. Deposition at both room and low temperature pr...

    J.S. Wright, L. Stafford, B.P. Gila, D.P. Norton… in Journal of Electronic Materials (2007)

  6. No Access

    Article

    Mechanical Behavior of a Mems Acoustic Emission Sensor

    The elastic modulus and hardness of materials used in a MEMS acoustic emission sensor were determined using nanoindentation techniques. In addition to testing each individual material, the behavior of four can...

    D. F. Bahr, J. S. Wright, L. F. Francis, N. R. Moody… in MRS Online Proceedings Library (1996)

  7. No Access

    Article

    Processing and Piezoelectric Properties of MOD PZT Films and PZT/Polymer Composite Coatings

    Lead zirconate titanate, Pb(Zr0.53Ti0.47)O3 (PZT), coatings were prepared using a metallorganic decomposition (MOD) route with lead and titanium acetates and zirconium acetylacetonate in acetic acid and water. Fi...

    J. S. Wright, L. F. Francis in MRS Online Proceedings Library (1996)

  8. No Access

    Article

    Detection of a new white-dwarf binary system in the extreme ultraviolet using the Rosat Wide Field Camera

    DETAILED understanding of the evolution of main-sequence stars into white dwarfs depends on knowledge of the chemical composition of white-dwarf atmospheres, but the hottest white dwarfs emit much of their rad...

    B. A. Cooke, M. A. Barstow, E. R. Breeveld, P. A. Charles, C. V. Goodall… in Nature (1992)

  9. No Access

    Chapter

    Early Results from the Rosat Wide Field Camera

    We present early results from observations made by the UK’s imaging EUV telescope, the Wide Field Camera (WFC). This telescope is being flown aboard the West German satellite ROSAT. In conjunction with a large...

    M. A. Barstow, A. F. Abbey, R. E. Cole, M. Denby, C. G. Page… in White Dwarfs (1991)

  10. No Access

    Article

    An improved probe for sampling soil atmospheres

    A probe for the extraction of soil gases is described. Novel features are the way the probe aperture within the soil can be manipulated from above, and the design of the tip to maximize gas extraction.

    A. J. Moffat, M. Johnston, J. S. Wright in Plant and Soil (1990)

  11. Article

    Determination of Uranium as Pyrophosphate

    J. S. WRIGHT, T. J. HAYES, J. A. RYAN in Nature (1961)

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  12. No Access

    Article

    Determination of Uranium as Pyrophosphate

    IN the gravimetric determination of uranium as phosphate, the ignited precipitate is commonly considered1 to be the pyrophosphate (UO2)2P2O7 (U = 66.67 per cent). In recent work in these laboratories uranium was ...

    J. S. WRIGHT, T. J. HAYES, J. A. RYAN in Nature (1961)