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Filtering by: Committee Member Piatt, John F. Remove constraint Committee Member: Piatt, John F. Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Some aspects of currents in Long Island Sound

    Creator:
    Swanson, R. Lawrence (Robert Lawrence), 1938-
    Abstract:
    Current observations were obtained at three locations forming a cross section along 70°34'W longitude in Long Island Sound. Fifteen days of data were selected from each series so that nearly simultaneous observations were used in the analysis. Elementary statistics were computed for the data prior to performing a least squares...
    Resource Type:
    Dissertation
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    Guthrie, Mr. John Seaders and Dr. R. E. Dimick. Thanks to Miss Frances Mayhugh who typed the several

  • Investigation of metal-insulator-metal (MIM) and nanolaminate barrier MIIM tunnel devices fabricated via atomic layer deposition

    Creator:
    Alimardani, Nasir
    Abstract:
    Metal-insulator-metal (MIM) tunnel devices have been proposed for high speed applications such as hot electron transistors, IR detectors, optical rectennas for IR energy harvesting, and backplanes for LCDs. The majority of these applications require highly asymmetric and non-linear current versus voltage (I-V) behavior at low applied voltages and ultra-high frequencies....
    Resource Type:
    Dissertation
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    Tunnel Devices Fabricated via Atomic Layer Deposition Abstract approved: John F. Conley, Jr. Metal

  • Characterization and Investigations of Thin-Film Materials with X-ray Photoelectron Spectroscopy

    Creator:
    Diulus, J. Trey
    Abstract:
    Surface characterization of materials is widely utilized over a range of disciplines and essential to the development of new materials, technology, or processes. Metal oxide nanoclusters have shown promise as potential new generation photoresist materials for extreme ultraviolet (EUV) nanolithography. Organotin clusters have been proposed as potential candidates for resist...
    Resource Type:
    Dissertation
    Full Text:
    my parents, John and Barbra Diulus, who were exceptionally supportive of me pursuing my educational

  • Using Computational Studies to Characterize Aqueous Metal Clusters : From Spectroscopy to Stability

    Creator:
    Wills, Lindsay A.
    Abstract:
    In this dissertation, the spectroscopic properties and thermodynamic stability of a class of materials known as metal oxo and hydroxo clusters are studied. In aqueous solutions, many metals can aggregate into discrete clusters of metals bridged by oxo or hydroxo ligands. These clusters are of particular interest to us for...
    Resource Type:
    Dissertation
    Full Text:
    John Wager, and Professor David Graham, has spent helping me understand and improve my research

  • DC/AC Stability of In-Ga-Zn-O Thin-Film Transistors

    Creator:
    Zhou, Fan
    Abstract:
    The electrical stability of amorphous indium-gallium-zinc oxide (a-IGZO) thinfilmtransistors (TFTs) is investigated for flat-panel display applications. Althoughproducts incorporating a-IGZO TFT backplanes are already commercially available,e.g., iMac with 5K retina display, technical challenges need to be addressed for nextgenerationapplications, e.g., active-matrix organic light-emitting diode displays.Device stability is one crucial issue. The...
    Resource Type:
    Dissertation
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    Transistors Abstract approved: ______________________________________________________ John F

  • Refractory Amorphous Metal Thin Films

    Creator:
    Olsen, Kristopher R.
    Abstract:
    Amorphous metal thin films lack the grain boundaries and dislocations present in crystalline metal films. As a result, amorphous metal films can be more mechanically robust, atomically smooth, and more resistant to chemical attack than crystalline metals. However, amorphous metals are meta-stable and subject to crystallization upon heating, thus limiting...
    Resource Type:
    Dissertation
    Full Text:
    Kristopher R. Olsen1, John M. McGlone2, William F. Stickle3, James E. Abbott3, Roberto A. Pugliese3, Greg S

  • New multi-functional chalcogenides for photovoltaic and thermoelectric materials

    Creator:
    Heo, Jaeseok
    Abstract:
    The subject of this PhD thesis is part of a research domain of great present interest in new semiconductor materials for photovoltaic and thermoelectric applications. This domain contains the elaboration and the study of both Cu-based chalcogenides bulk and thin-film samples, driven by materials design principles. One of the most...
    Resource Type:
    Dissertation
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    the members of the supervisory committee; Janet Tate, John F. Wager, Mas A. Subramanian, and Brady J

  • Modeling transient thermalhydraulic behavior of a thermionic fuel element for nuclear space reactors

    Creator:
    Al-Kheliewi, Abdullah S.
    Abstract:
    A transient code (TFETC) for calculating the temperature distribution throughout the radial and axial positions of a thermionic fuel element (TFE) has been successfully developed. It accommodates the variations of temperatures, thermal power, electrical power, voltage, and current density throughout the TFE as a function of time as well as...
    Resource Type:
    Dissertation
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    committee members: Dr. Jack F. Higginbotham, Dr. M. M. Kulas, and Dr. John Peterson for their time and

  • Compensation techniques for cascaded delta-sigma A/D converters and high-performance switched-capacitor circuits

    Creator:
    Sun, Tao
    Abstract:
    This thesis describes compensation techniques for cascaded delta-sigma A/D converters (ADCs) and high-performance switched-capacitor (SC) circuits. Various correlated-double-sampling (CDS) techniques are presented to reduce the effects of the nonidealities, such as clock feedthrough, charge injection, opamp input-referred noise and offset, and finite opamp gain, in SC circuits. A CDS technique...
    Resource Type:
    Dissertation
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    graduate committee. I would like to thank my graduate committee members: Prof. John F. Wager, Prof. Un

  • Photoresist and ion-exchange chemistry of HafSOx

    Creator:
    Telecky, Alan J.
    Abstract:
    The chemistry of hafnium oxide based and materials are described in the context of ion exchange and lithography. HafSOx, represented by the composition HfO₂₋[subscript x](SO₄)x, is described to possess a significant capacity towards ion exchange in acidic and basic solutions, enabling films of HafSOx to be cleanly and readily be...
    Resource Type:
    Dissertation
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    relationship that I am eager to continue. I also extend much gratitude to my committee members Dr. John