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Filtering by: Creator Oregon State University. Department of Horticulture Remove constraint Creator: Oregon State University. Department of Horticulture Committee Member Tate, Janet Remove constraint Committee Member: Tate, Janet Degree Field Physics Remove constraint Degree Field: Physics

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  • Organic Semiconductors : Incorporating Xylindein into (Opto)Electronic Devices

    Creator:
    Rath, Jeremy J.
    Abstract:
    This research investigates the electronic properties of a fungi-derived pigment, xylindein as a novel sustainable material for organic electronics. Xylindein molecules were characterized in solution and in film. Absorption spectra and (photo)luminescence spectra were taken at various excitation wavelengths. Xylindein’s molecular properties were computed with the Gaussian 09 software suite....
    Resource Type:
    Undergraduate Thesis
    Full Text:
    (Opto)Electronic Devices Jeremy J. Rath Advised by: Oksana Ostroverkhova Department of Physics Oregon

  • Design of an Optical Medium for the Simulation of Neutron Transport in Reactor Component Materials

    Creator:
    Konyndyk, David M.
    Abstract:
    The scattering of optical rays by small spherical particles bears a strong resemblance to the diffusion of fission neutrons in solid materials. This work explores the feasibility of exploiting similarities between these two systems for the purposes of reactor component analysis, education, and outreach. After a brief overview of reactor-environment...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    State University, Corvallis Oregon May 8, 2015 Abstract The scattering of optical rays by small

  • High Field Terahertz Spectroscopy of Optically Excited Gallium Arsenide

    Creator:
    Compeau, James
    Abstract:
    High field time-domain terahertz spectroscopy (TDS) is used to determine the time dependent transmission and the time-delay and optical-power dependent conductivity of a wafer of gallium arsenide (GaAs). Gallium arsenide is a direct band-gap semiconductor and has potential as a computer processor component. Analysis of the transmission of terahertz (THz)...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    High Field Terahertz Spectroscopy of Optically Excited Gallium

  • Quantifying the Effects of Acoustic Coupling on Advanced LIGO

    Creator:
    Banowetz, Katherine
    Abstract:
    The Laser Gravitational Wave Observatory, or LIGO, is built to observe gravitational waves as they propagate through space. Advanced LIGO is extremely sensitive to movements of the test mass as small as 10⁻²¹ m/√Hz , which allows many signals other than gravitational waves to be detected by the system. Pressure...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    Katherine Banowetz Oregon State University May 17, 2016 Advisor: Dr. Robert Schofield University of Oregon

  • The contact value approximation to the pair distribution function for an inhomogeneous hard sphere fluid

    Creator:
    Lurie-Gregg, Paho
    Abstract:
    We construct the contact value approximation (CVA) for the pair distribution function, g(²)(r₁, r₂), for an inhomogeneous hard sphere fluid. The CVA is an average of two radial distribution functions, which each take as input the distance between the particles, |r₂ −r₁|, and the average value of the radial distribution...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    overlap, until none of the spheres overlap. This gives a valid state to start with. Then, the simulation

  • Measurement of optical bandgap energies of semiconductors

    Creator:
    Russell, Joshua A.
    Abstract:
    A method for bandgap energy determination using di use re ection is presented and compared to the traditional integrating sphere method. We have found the bandgap energies of ZnO, TiO₂, Cu₂O, Si, SnZrS₃, SnZrSe₃, Sn₂S₃, and BiCuOSe powders with both methods and found they agree within 0.03 eV. We have...
    Resource Type:
    Masters Thesis
    Full Text:
    submitted to Oregon State University in partial ful�llment of the requirements for the degree of Master

  • Monte Carlo simulations of magnetic semiconducting Superlattices

    Creator:
    Scott, Silas Menlo
    Abstract:
    Computer simulations invoking the Metropolis Algorithm and Monte Carlo techniques were constructed to model the behavior ofvarious systems of magnetic semiconductors. Among the systems modeled were bulk type II FCC antiferromagnets and simple cubic thin films and superlattices. Studies of bulk antiferromagnets revealed dependence of Neel Temperature on nearest neighbor...
    Resource Type:
    Dissertation
    Full Text:
    I understand that my thesis will become part of the permanent collection of Oregon State University

  • 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:
    collection of Oregon State University libraries. My signature below authorizes release of my dissertation

  • 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:
    Barras A THESIS submitted to Oregon State University in partial fulfillment of the requirements for

  • The Formation of Astrophysical Dust

    Creator:
    Mauney, Christopher M.
    Abstract:
    The formation of carbonaceous and silicate precursor molecules to astrophysical dust grains is investigated. Using density functional theory (DFT) in combination with global optimization techniques, the ground-state binding energies of dust precursors are determined. These results are employed in atomistic nucleation theory (ANT) to predict the critical size and nucleation...
    Resource Type:
    Dissertation
    Full Text:
    Mauney A DISSERTATION submitted to Oregon State University in partial fulfillment of the requirements