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Filtering by: Creator Williams, Lynn H. Remove constraint Creator: Williams, Lynn H. Committee Member Warnes, William Remove constraint Committee Member: Warnes, William

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  • Zinc tin oxide thin-film transistor circuits

    Creator:
    Heineck, Daniel Philip
    Abstract:
    The primary objective of this thesis is to develop a process for fabricating integrated circuits based on thin-film transistors (TFTs) using zinc tin oxide (ZTO) as the channel layer. ZTO, in contrast to indium- or gallium-based amorphous oxide semiconductors (AOS), is perceived to be a more commercially viable AOS choice...
    Resource Type:
    Masters Thesis
    Full Text:
    concentrations and is very near the atomic hydrogen (H) peak, which occurs at an Ar/CH4 ratio of 70/30. OES

  • Uniform residence time in microreactor-assisted solution deposition of CdS thin-films for CIGS photovoltaic cells

    Creator:
    Hires, Clayton Lamar
    Abstract:
    Photovoltaic (PV) cells have long been an attractive alternative for the consumption of fossil fuels but current manufacturing practices suffer from poor energy efficiency, large carbon footprints, low material utilization, high processing temperatures and high solvent usage. A critical step in PV production is the deposition of CdS as a...
    Resource Type:
    Masters Thesis
    Full Text:
    Oregon State University. My appreciation is extended to my graduate committee members Dr. William

  • Tuning Functional Properties of Pyrochlore and Related Oxides via Cation and Anion Substitutions

    Creator:
    Giampaoli, Gabriella C. S.
    Abstract:
    Inorganic structures play an important role in materials due to their versatility and diversity. A complete understanding of the structure of a material is vital to enhance the creation of new materials that fill voids in research. The rational design of these compounds is driven by the exploitation of structure-property...
    Resource Type:
    Dissertation
    Full Text:
    . William Warnes, for giving their time, and reviewing this work. Thank you to the collaborators that I

  • Time-based analog signal processing

    Creator:
    Drost, Brian George
    Abstract:
    As CMOS processes size continues to shrink, a number of factors limit the ability of analog circuit performance to scale with the process. These issues include smaller transistor intrinsic gains and lower supply voltages. However, scaling continues to increase the speed and decrease the power of digital circuits. In this...
    Resource Type:
    Masters Thesis
    Full Text:
    function is: H(s) = KCCOKPDICP s (2.6) From the transfer function, it can be seen that this topology

  • The dynamic shear moduli of blubber for selected large whale species

    Creator:
    Summers, Michael P.
    Abstract:
    Whale blubber is the insular tissue layer located between the dermis and the superficial fascia layer which sheathes the whale's musculature. It is made up of a lipid matrix ramified with strong, structural collagen and elastic fiber bundles, but little is known of its mechanical properties. Knowing these properties adds...
    Resource Type:
    Masters Thesis
    Full Text:
    members Dr. William Warnes and Dr. Skip Rochefort for their input and assistance throughout my graduate

  • Synthesis and characterization of Pb(Zr,Ti)O₃ thin films for microelectromechanical systems

    Creator:
    Brookshire, Kirsten L.
    Abstract:
    Pb(Zr,Ti)O₃ (PZT) is a very attractive material for use in piezoelectric-based microelectromechanical systems (MEMS) due to its high piezoelectric coefficients and ability for large displacements with relatively low applied fields (as compared to electrostatic-based MEMS). The piezoelectric effect is strongly anisotropic, thus it is very desirable to control the crystallographic...
    Resource Type:
    Masters Thesis
    Full Text:
    . Reference 1. Lang, S, B. (1975). Ferroelectrics, 9, 141; Jaffe, H, ibid., 151 . where the state for t¡ = x

  • Synthesis and characterization of nanoporous alumina films and their application to nanorod array fabrication

    Creator:
    Abolhassani Monfared, Negar
    Abstract:
    The purpose of this study is to synthesize and characterize the nanoporous structures that can be obtained by the anodization of thin film aluminum sputter deposited on a silicon wafer substrate. This study also investigated the application of nanoporous alumina to fabricate nanorod arrays by using preceramic polymers. Although there...
    Resource Type:
    Dissertation
    Full Text:
    Polyureasilazane . . . . . . . . . . . . . . 246 H Details of X-ray Photoelectron Spectroscopy (XPS

  • Studies toward the total synthesis of azaspiracid-1

    Creator:
    Kuiper, Damien L.
    Abstract:
    Azaspiracid has generated an enormous amount of scientific interest in the fourteen years since its initial discovery. The structure contains a 6,5,6 bis-spiroketal, a [3.3.1] bicyclic ketal and a 6,5-spiroaminal linkage as key moieties. With 9 rings, 20 stereocenters and three alkenes, the azaspiracid immediately attracted the interest of the...
    Resource Type:
    Dissertation
    Full Text:
    HO O OH O O O OH HO O O O H HNH H H H H 14 16 17 19 20 7 8 O HO O OH O O O

  • Students' generalisation of function from single- to multivariable settings

    Creator:
    Dorko, Allison J.
    Abstract:
    Generalisation is a key component of mathematical activity. Mathematicians often seek general formulae or wonder if a rule that holds in a particular dimension also holds in dimension n. However, generalisation is not limited to professional mathematicians; kindergarteners engage in generalisation when they seek patterns and algebra is sometimes described...
    Resource Type:
    Dissertation

  • Structure and piezoelectric properties of lead-free bismuth-based perovskite solid solutions

    Creator:
    Huang, Chien-Chih
    Abstract:
    A new group of lead free piezoelectric perovskite solid solutions, (1-x)Bi(B'B")O₃-xABO₃, were obtained via solid-state processing techniques. The solubility of unstable perovskite Bi(B'B")O₃ compounds into stable perovskite compounds was found to be related to the tolerance factor of the ABO₃ perovskite endmembers. The morphotropic phase boundary (MBP) in perovskite solid...
    Resource Type:
    Dissertation
    Full Text:
    would also like to thank my committee members Dr. William Warnes, Dr. Jamie Kruzic, Dr. Philip Watson