Search Constraints

Start Over
Filtering by: Creator Sikkel, Paul C. Remove constraint Creator: Sikkel, Paul C. Committee Member Tate, Janet Remove constraint Committee Member: Tate, Janet

Search Results

  • Generating and using terahertz radiation to explore carrier dynamics of semiconductor and metal nanostructures

    Creator:
    Jameson, Andrew D.
    Abstract:
    In this thesis, I present studies in the field of terahertz (THz) spectroscopy. These studies are divided into three areas: Development of a narrowband THz source, the study of carrier transport in metal thin films, and the exploration of coherent dynamics of quasi-particles in semiconductor nanostructures with both broadband and...
    Resource Type:
    Dissertation
    Full Text:
    expressed as [41]: optTHz p w nn c l    (2.5.4) However, we must keep in mind that the

  • Design, fabrication and application of a microfluidic nanofiltration module for separation and purification of macromolecules and nanoparticles

    Creator:
    Rundel, Jack T.
    Abstract:
    A microfluidic nanofiltration module has been designed, fabricated and applied to the continuous-flow, pressure-driven, post-synthetic purification of macromolecules and nanoparticles via diafiltration using a commercially available organic solvent resistant nanofiltration membrane, STARMEM 122. This module will readily interface with other microscale components within a "nanofactory" for the rapid synthesis, purification...
    Resource Type:
    Dissertation
    Full Text:
    following: Collaboration and Technical Support Members of the Remcho Group, OSU Members of the Paul

  • Development of oxide semiconductors : materials, devices, and integration

    Creator:
    Chiang, Hai Q.
    Abstract:
    The aim of this dissertation is to develop oxide semiconductors by radio-frequency sputtering for thin-film transistor (TFT) applications. A variety of oxide semiconductors are used as the TFT channel layer, including indium gallium oxide (IGO), zinc tin oxide (ZTO), and indium gallium zinc oxide (IGZO). The variety of materials used...
    Resource Type:
    Dissertation
    Full Text:
    electrical properties, even when annealedat low-temperature (175◦C). Specifically, ZTO-based TFTs which are

  • Optical, electronic, and thermodynamic properties of layered mixed anion compounds

    Creator:
    Vielma, Jason Michael
    Abstract:
    Mixed anion compounds that form ZrCuSiAs-type crystal structures exhibit remarkable properties such as superconductivity at low temperatures, hole conduction with optical transparency in the visible region, and exciton absorption at room temperature. In this thesis, properties of a selected group of materials out of the very large set of mixed...
    Resource Type:
    Dissertation
    Full Text:
    calculated using the Bethe-Salpeter equation in the GW approxi- mation. c©Copyright by Jason Michael

  • First principles studies of optical, electronic and mechanical properties of organic molecules and solids

    Creator:
    Barras, Faye Lyn
    Abstract:
    This thesis presents the results of quantum-mechanical first principles calculations of optical, electronic and mechanical properties of organic molecules and solids, which have diverse potential applications such as photovoltaics, flexible electronics, and mechanical catalysts with applications in force sensors and self-healing materials. The electronic and optoelectronic properties of organic thin...
    Resource Type:
    Dissertation
    Full Text:
    results. c©Copyright by Faye Lyn Barras June 12, 2014 All Rights Reserved First Principles Studies

  • Development of bi-based lead-free piezoelectric materials : thin film piezoelectric materials via PVD and CSD routes

    Creator:
    Jeon, Yu Hong
    Abstract:
    Piezoelectric materials have been widely used in electromechanical actuators, sensors, and ultrasonic transducers. Among these materials, lead zirconate titanate Pb(Zr[subscript 1‐x]Ti[subscript x])O₃ (PZT) has been primarily investigated due to its excellent piezoelectric properties. However, environmental concerns due to the toxicity of PbO have led to investigations into alternative materials systems....
    Resource Type:
    Dissertation
    Full Text:
    
plates
(c)
the
increase
in
the
capacitance

 












after
inserting
a
dielectric
material

  • Geometric reasoning in an active-engagement upper-division E&M classroom

    Creator:
    Cerny, Leonard Thomas
    Abstract:
    A combination of theoretical perspectives is used to create a rich description of student reasoning when facing a highly-geometric electricity and magnetism problem in an upper-division active-engagement physics classroom at Oregon State University. Geometric reasoning as students encounter problem situations ranging from familiar to novel is described using van Zee...
    Resource Type:
    Dissertation

  • Isolating Non-Blackbody Radiation Spectra from Low-Bandgap LEDs near Zero Bias

    Creator:
    Teo, YiPeng
    Abstract:
    The study of carrier transport in light-emitting diode (LED) has been researched extensively in the past. However, most studies were implementing voltages above the turn-on voltage of the LED. Research on LEDs well below the turn-on voltage threshold is comparatively scarce for good reasons. When the supply voltage is below...
    Resource Type:
    Honors College Thesis
    Full Text:
    / bands t r . html by Paul . 31 APPENDIX B. PYTHON SCRIPT The q u a d r a t i c equat ion i s o f

  • On the Properties and Characteristics of Solution Processed Hafnium Based Thin-Films from Aqueous Precursors

    Creator:
    Decker, Shawn R.
    Abstract:
    Aqueous hydroxo Hf nanoclusters enable studies to identify and codify steps in the deposition of Hf-based oxide thin films from solution precursors. HfOCl2 reacts with combinations of H2O2(aq), acids, and TMAH to produce polymetal species at high pH and low pH. X-ray scattering and spectroscopic methods reveal the nature of...
    Resource Type:
    Dissertation
    Full Text:
    Nyman, Michelle Dolgos, and Paul Cheong whose guidance and feedback on a wide array of matters helped

  • Wide band gap semiconductors and insulators : synthesis, processing and characterization

    Creator:
    Hersh, Peter A.
    Abstract:
    The work presented here is focused on applying basic principles of solid-state chemistry to the study and development of new wide band-gap semiconductors and insulators for photovoltaic and electronic-device applications. Analysis of crystal structure, band structure, optical band gap, morphology and transport properties provides fundamental insight into materials performance as...
    Resource Type:
    Dissertation
    Full Text:
    , Paul Newhouse, Robert Kykyneshi, David Hong, Dr. Hai Chiang, Jack Spies and Richard Schafer. Ted