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Filtering by: Creator Guss, Thomas O. Remove constraint Creator: Guss, Thomas O. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Al-In-Sn-O thin-film transistors

    Creator:
    Stewart, Kevin A.
    Abstract:
    The aim of the research undertaken for this thesis was to develop a new high-performance amorphous oxide semiconductor (AOS) for use as a channel layer in a thin-film transistor (TFT). AOS TFTs offer higher electron mobility than the established amorphous silicon based technology. A new channel material comprised of aluminum...
    Resource Type:
    Masters Thesis
    Full Text:
    Al-In-Sn-O Thin-Film Transistors AN ABSTRACT OF THE

  • Design and analysis techniques for nano-joule ADCs and sampling linearity

    Creator:
    Brown, Thomas (Thomas William)
    Abstract:
    Two aspects of ADC system performance are addressed in this work. First, the combination of the ADC and its associated reference are co-designed for an energy constrained remote sensing system. Second, sampling linearity is mathematically analyzed as a function of frequency to provide enhanced understanding into an ADC's requisite sampling...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Thomas Brown for the

  • 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
    Full Text:
    & Computer Engineering presented on September 14, 2017. Title: DC/AC Stability of In-Ga-Zn-O Thin-Film

  • Electrical properties of GaAs FET structures

    Creator:
    Yang, Fanling Hsu
    Abstract:
    The electrical properties of ion-implanted GaAs FET channels are investigated by two methods. First, the channel current (I) as a function of voltage (V) is examined at different temperatures and using different voltage ramp rates. The standard FET I-V curve, which can be observed on a commercial curve tracer, is...
    Resource Type:
    Dissertation
    Full Text:
    sample at a lower temperature 220 o K) (a), and a simplified schematic diagram for the same channel (b

  • Deep ultraviolet solid-state laser development

    Creator:
    Dutton, David A. (David Adam)
    Abstract:
    There is a new possibility of generating deep ultraviolet laser radiation from a solid-state source. With recent advances in material development, a new nonlinear optical crystal provides a greater damage threshold than current materials making higher conversion efficiencies possible. This thesis examines the possibility of using this crystal to generate...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: _____________________________________________________________________ Thomas K. Plant

  • Modeling and testing of semi-insulating gallium arsenide interdigitated photodetectors

    Creator:
    Kollipara, Ravindranath Tagore
    Abstract:
    High speed photodetectors are a necessary element in broad band digital and analog optical communication systems. In this thesis easily integrable planar high speed photodetectors made on undoped semi-insulating (SI) GaAs substrates are modeled and tested. The fabrication process of the detectors is fully compatible with GaAs metal-semiconductor field effect...
    Resource Type:
    Dissertation
    Full Text:
    : Redacted for Privacy Thomas K. Plant High speed photodetectors are a necessary element in broad band

  • Electro-optic characterization of SrS-based alternating current thin-film electroluminescent devices

    Creator:
    Nevers, Corey A.
    Abstract:
    Two methods of electro-optically characterizing alternating-current thin-film electroluminescent (ACTFEL) devices are investigated: photo-induced transferred charge (PIQ) and luminescence (PIL), and subthreshold voltage-induced transferred charge (VIQ) techniques. Both techniques provide information related to traps within the phosphor layer. PIQ/PIL experiments monitor the transport of electrons and holes across the phosphor layer...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved- Thomas K. Plant Two methods of electro-optically characterizing alternating-current

  • A study of the photoresponse of semi-insulating gallium arsenide

    Creator:
    Schumm, Gerhard
    Abstract:
    The photoresponse behavior of semi-insulating GaAs is investigated. The photocarrier lifetime is discussed and the influence of surface and contact recombination is taken into account. Photocurrent-voltage characteristics have been measured and a mechanism for the gain in terms of space charge amplification and avalanching is suggested. The influence of deep...
    Resource Type:
    Masters Thesis
    Full Text:
    Gallium Arsenide Abstract approved: Redacted for privacy Thomas K. Plant The photoresponse behavior of

  • Low cost, short wavelenght fiber Bragg grating strain sensor systems

    Creator:
    Vaughan, Lira
    Abstract:
    Fiber Bragg grating sensors have been constantly researched for the last ten years and have finally begun to find use in the commercial market. However, one of the major factors limiting their widespread use is their system cost. Their lightweight, flexibility, electromagnetic immunity, and small size make fiber Bragg grating...
    Resource Type:
    Masters Thesis
    Full Text:
    , Short Wavelength Fiber Bragg Grating Strain Sensor Systems. Abstract Approved: Thomas K. Plant Fiber

  • Modeling of the orientation dependence of scanned HgCdTe infrared detectors

    Creator:
    Reudink, Mark D.
    Abstract:
    Mercury cadmium telluride is important in the detection of electromagnetic radiation in the eight to twelve micron atmospheric window for infrared imaging systems. High resolution infrared imaging systems use either large (256x256 element to 1024x1024 element) staring arrays or much smaller (1-6 element) scanned arrays in which the image is...
    Resource Type:
    Masters Thesis
    Full Text:
    Dependence of Scanned HgCdTe Infrared Detectors. Abstract approved: Redacted for Privacy Thomas K. Plant