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Filtering by: Creator Olsen, Michael J. Remove constraint Creator: Olsen, Michael J. Committee Member Lerner, Michael Remove constraint Committee Member: Lerner, Michael

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  • Chemical Solution Deposition and in-situ Structural Characterization of Pb-free, Bi-based, Piezoelectric Thin Films

    Creator:
    Fox, Austin J.
    Abstract:
    This work explores the electric field induced strain mechanisms in environmentally benign Bi0.5Na0.5TiO3 (BNT) based piezoelectric thin films. Although BNT-based materials show promise as replacements for toxic Pb-based piezoelectrics, the displacement mechanisms are not consistent between thin films and bulk materials, and the differences have yet to be well understood....
    Resource Type:
    Dissertation
    Full Text:
    J. Gibbons This work explores the electric field induced strain mechanisms in

  • Hydrogen production via a sulfur-sulfur thermochemical water-splitting cycle

    Creator:
    AuYeung, Nicholas J.
    Abstract:
    Thermochemical water splitting cycles have been conceptualized and researched for over half a century, yet to this day none are commercially viable. The heavily studied Sulfur-Iodine cycle has been stalled in the early development stage due to a difficult HI-H₂O separation step and material compatibility issues. In an effort to...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Nicholas J. AuYeung

  • Transient electric birefringence for the characterization of cellulose nanocrystals and tobacco mosaic virus

    Creator:
    Taylor, Melissa J.
    Abstract:
    The development of a transient electric birefringence (TEB) apparatus for macroparticle characterization is herein discussed. The experimental difficulties encountered were related largely to poor data resolution. Misalignment and strain birefringence in optical components further complicated results. Improved data digitization methods were developed, and precise mathematical models were derived in order...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Melissa J. Taylor for the

  • The chemistry and device applications of amorphous thin-film interfaces

    Creator:
    Knutson, Christopher C.
    Abstract:
    Solid-state amorphous materials show amazing promise in thin-film electronics. The interface-to-bulk ratio of thin films makes interfacial chemistries of these systems of utmost importance. Thin films of amorphous metals, dielectrics and semiconductors have novel chemistries that are not only based upon their elemental constituent makeup, but also based upon the...
    Resource Type:
    Dissertation
    Full Text:
    group of Dr. J. F. Wager. Dr. Wager has shown me that engineers do chemistry and has taught me to

  • Thin-Film Dielectric Structure of Spin-Coated ZrO2 from Aqueous Inorganic Solution

    Creator:
    Moreno Luna, Hidekel A.
    Abstract:
    An inorganic aqueous precursor for the deposition of ZrO2 thin films via spincoating was developed. Hydrolysis and condensation chemistries of ZrOCl₂·8H₂O were used as the principal reactions to guide the synthesis. Refractive index, n, for a film annealed at 300 °C at 550 nm was measured to be n=1.97 by...
    Resource Type:
    Honors College Thesis
    Full Text:
    through many hours of data workup and writing, including: Jamie, Brad, Darren, Michael, Corey, Lyle

  • Synthesis and Solution Behavior of Tetravalent Metal Clusters with Ammonium Counterions

    Creator:
    Brown, Jessica C.
    Abstract:
    Global interest in reducing carbon emissions by use of alternative energy sources makes nuclear energy production and the impacts of the nuclear energy cycle relevant. Studying the aqueous speciation of tetravalent metals commonly used for nuclear energy (uranium, thorium, plutonium) can inform us of general metal properties and their behavior...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Michael Lerner, Committee Member, representing Department of Chemistry

  • Modeling Arctic melt ponds using a resolved ice model with GCM forcing

    Creator:
    Collins, Lee E.
    Abstract:
    The albedo of Arctic sea ice depends greatly on the formation of melt ponds. These ponds form in depressions on the ice as surface snow melts during the summer months, and their location is determined mainly by the initial snow topography. Using a high resolution sea ice model forced with...
    Resource Type:
    Masters Thesis
    Full Text:
    his graduate council representative Michael Lerner for their input on this project. Finally, the

  • Metal-oxo Clusters as Novel Photolithographic Materials: How Understanding the Chemistry of HafSOx Informs Next-Generation Patterning Systems

    Creator:
    Amador, Jenn M.
    Abstract:
    The solution chemistry and kinetic behavior of hafnium peroxy sulfate solutions ("HafSOx") is described in terms of peroxide content and solution speciation. Additionally, thin film behavior, including thermal behavior and solubility, is characterized, and a mechanism of patterning is presented, as well as parameters that should be considered when looking...
    Resource Type:
    Dissertation
    Full Text:
    Decker, Vasily Gouliouk, Ryan Mansergh, Yu Huang, Kris Olsen, Cory Perkins, Sumit Saha, Juan Carlos

  • Structural Elucidation of Metal-Oxo Systems by X-Ray Scattering Methods

    Creator:
    Kozma, Karoly
    Abstract:
    Metal-oxo clusters are discrete molecular metal-oxides. Most metals form numerous cluster compounds that can be ligated, unligated, charged or neutral, controlling their solubility in water and/or organic solvents. They are important species to study reaction pathways from the monomeric building units to the bulk metal oxides, and have many application...
    Resource Type:
    Dissertation
    Full Text:
    Sadeghihosseinabadi, Dr. Nicolas Martin, Dr. Elliot Glass, Danielle Hutchison, Morgan Olsen, Mehran Amiri, Ana

  • Synthesis and characterization of aluminum oxide based materials - from molecule to device

    Creator:
    Wang, Wei
    Abstract:
    A scalable synthesis of the "flat" tridecameric inorganic cluster [Al₁₃(μ₃-OH)₆(μ-OH)₁₈(H₂O)₂₄]¹⁵⁺ has been realized by treating an aqueous aluminum nitrate solution with zinc-metal powder at room temperature. Single crystals and polycrystalline samples are readily obtained in yields exceeding 55% relative to the starting reagent Al(NO₃)₃. Products have been characterized by X-ray...
    Resource Type:
    Dissertation
    Full Text:
    Moreno Luna, Mr. Kris Olsen, Mr. Jae-Seok Heo, Ms. Deok-Hie Park, Mr. Shawn Decker, Ms. Jenn Amardar