Index Catalog // ScholarsArchive@OSU

The Effect of Surface Finish on Ball Grid Array Lead Free Solder Joints

Creator:: Casali, Dick R.
Abstract:: As microelectronic parts trend smaller so do their solder joints. The surface finish on a copper pad is expected to become a significant part of the total solder joint volume and therefore affect mechanical properties of the smaller solder joints. Two sample geometries and four different surface finishes for tin-silver-copper...
Resource Type:: Dissertation
Full Text:: Gibbons for administrative support and co-advisor. Dr.’s David Cann and Bill Warnes for being part of

Fabrication of a flexible glucose sensing catheter for human implantation

Creator:: Matthews, David J.
Abstract:: Flexible electronics processing techniques were applied to integrate a glucose sensor with a hormone-delivery catheter in order to create a cheap and minimally invasive method for patients with type 1 diabetes to continually monitor and control their blood sugar levels. Ultimately, this work intends to move toward the development of...
Resource Type:: Masters Thesis
Full Text:: Implantation AN ABSTRACT OF THE THESIS OF David J. Matthews for the degree of Master of

Crystallization and Growth of TiO2 Polymorphs from Pulsed Laser Deposited and RF-Sputtered, Amorphous Thin-Film Precursors

Creator:: Agirseven, Okan
Abstract:: TiO2 is a versatile wide bandgap transparent semiconducting oxide with three well known polymorphs: Anatase, Rutile and Brookite. These crystal structures are desired for many industrial applications mainly for their photocatalytic activity, oftentimes in thin-film form. Thin-film crystalline polymorphs of TiO2 are often made by physical vapor deposition on a...
Resource Type:: Dissertation
Full Text:: knowledge and support of Dr. David Cann, Dr. Brady Gibbons, Dr. Gregory Herman, and Dr. Yun-Shik Lee. I

The Use of Various Morphologies of Nanocellulose as Life Long Anodes of Sodium Ion Batteries

Creator:: Schardt, Jenna
Abstract:: Sodium-ion batteries (SIBs) require the use of a highly reversible anode. To form this anode carbon nanofibers and nanocrystals are derived from cellulose nanofibers, cellulose nanocrystals, and bacterial nanocellulose. The primary structure of the cellulose nanofibers is maintained when carbonized allowing for high surface area in the structure. The carbon...
Resource Type:: Masters Thesis
Full Text:: and willing to help in the advancement of my degree and career. I would like to thank Dr. David

Substitutional Effects on the Electromechanical Properties of Lead-free, Piezoelectric (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT)

Creator:: McQuade, Ryan R.
Abstract:: This work investigates the effect of cation substitution on the properties of the lead-free, solid solution (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT). Substitution into NBT-BT increases disorder and increases the relaxor ferroelectric properties. These relaxor ferroelectric materials show large piezoelectric strains that can be utilized in actuator applications. Ceramic samples were prepared using standard...
Resource Type:: Dissertation
Full Text:: David Cann and his group for always being supportive and kind enough to share lab space and research

Conversion of glucose to hydrogen gas by supercritical water in a microchannel reactor

Creator:: Goodwin, Aaron K.
Abstract:: Glucose was gasified in supercritical water within a microchannel reactor at 650°C 750°C, and 250 bar to yield H2 rich gas with a low concentration of CO. The feed glucose concentration was 0.1 M. Two microchannel reactor configurations were tested at fluid residence times ranging from 0.5 sec to...
Resource Type:: Masters Thesis
Full Text:: . Lee et al. (2002) investigated temperature dependence on the gasification of 0.6 M glucose solution

Potential of Genetic Algorithms for Design of Liquid Cooled Heat Sinks Fabricated Using Additive Manufacturing

Creator:: Dokken, Connor B.
Abstract:: The advancement of new manufacturing techniques such as additive manufacturing enable significantly greater freedom of design compared to conventional techniques. Of significant interest is what improvements could be made in the design of cold plates and heat sinks for electronics cooling. Greater design freedom could potentially enable new designs that...
Resource Type:: Masters Thesis
Full Text:: Lee (1995

A multiple solution, laboratory-scale delivery system and its applications

Creator:: Gilbuena, Debra M.
Abstract:: Researchers around the world use various solution-based deposition techniques to deposit thin films with multiple layers that typically require multiple rounds of deposition. Some such techniques include successive ionic layer adsorption and reaction (SILAR), and layer-by-layer (LBL) deposition. One of the main issues with deposition of these types of films...
Resource Type:: Masters Thesis

Optimizing Production of Xylindein by Chlorociboria sp. and its Potential for Use with Nanocellulose

Creator:: Van Court, R. C.
Abstract:: Fungi from the genus Chlorociboria are known for their production of the blue-green quinonic pigment xylindein. Extracted xylindein has been the subject of investigations ranging from fabric dying to use a coloring agent in paint, and shows potential as an organic semiconductor in organic photovoltaics (OPVs) and other technologies. However,...
Resource Type:: Masters Thesis

A Reversible Conversion Cathode – Convert Dual-ion Battery into Rocking-Chair Battery

Creator:: Wu, Che-Yu
Abstract:: In Dual-ion Batteries, anions as charge carriers might be a potential technique of energy storage. While fluoride anion has been selected as a promising charge carrier for energy storage due to its high charge/mass ratio and small ionic radius, carbonate anion has never been reported as a charge carrier for...
Resource Type:: Masters Thesis
Full Text:: “David” Ji In Dual-ion Batteries, anions as charge carriers might be a potential technique of

In-Situ Confocal Scanning Laser Microscopy and Post-Exposure Analysis of a Cu/Fe-based Oxygen Carrier Material in High-Temperature Oxidation and Reduction Environments for Chemical Looping Combustion Applications

Creator:: Nealley, W. H. Harrison
Abstract:: A Cu/Fe-spinel-based oxygen carrier designed at the National Energy Technology Laboratory was studied in order to characterize its physical and chemical behavior with cyclic oxidation and reduction treatments at 800°C for applications in chemical looping combustions. Observations were made on individual particles of the oxygen carrier in-situ using a confocal...
Resource Type:: Masters Thesis
Full Text:: , Dr. David Alman, and the entire NETL – Albany organization for their financial support of the

Poly(vinyl alcohol) / cellulose nanocomposite barrier films

Creator:: Paralikar, Shweta
Abstract:: There is a continual interest in developing robust, flexible, durable, lightweight, waterborne polymer barrier coatings which are increasingly resistant towards both chemical warfare agents as well as an ever growing number of toxic industrial chemicals. In this study, barrier films were prepared with poly(vinyl alcohol) (PVOH) and varying amounts of...
Resource Type:: Masters Thesis
Full Text:: . Joe Karchesy, Dr. Christine Kelly and Dr. David Cann for agreeing to serve on my committee and for

Photoinitiated grafting of PMMA onto cellulose nanocrystals to improve nanocomposite reinforcement-matrix interface

Creator:: Mirashrafi, Suzanne
Abstract:: Cellulose nanocrystals (CNCs) are extremely abundant, biodegradable and light weight nanoparticles that have the potential to contribute in many fields including packaging, construction, solar cells and automotive. With the increasing interest in nanotechnology and nanocomposites, CNCs could provide a renewable, optically transparent and strong alternative to other nano-scale reinforcement phases....
Resource Type:: Masters Thesis
Full Text:: . I would also like to thank my Graduate Committee: Dr. David Cann, Dr. Skip Rochefort and Dr

Synthesis and characterization of Pb(Zr,Ti)O₃ thin films for microelectromechanical systems

Creator:: Brookshire, Kirsten L.
Abstract:: Pb(Zr,Ti)O₃ (PZT) is a very attractive material for use in piezoelectric-based microelectromechanical systems (MEMS) due to its high piezoelectric coefficients and ability for large displacements with relatively low applied fields (as compared to electrostatic-based MEMS). The piezoelectric effect is strongly anisotropic, thus it is very desirable to control the crystallographic...
Resource Type:: Masters Thesis
Full Text:: guidance and continued mentorship. Dr. David Cann and Dr. Bill Warnes, thank you for you support

Integration of vapor-solid grown ZnO nanowires through dielectrophoresis

Creator:: Ng, Vi-Vie
Abstract:: Work on individually constructed devices has demonstrated that nanowires (NWs) offer great promise for applications such as sensing and optoelectronics. Despite this work, reliable large scale alignment and integration of these individual nanostructures into a lithographically defined process remains a challenge. Dielectrophoresis (DEP) is a promising alignment method in which...
Resource Type:: Masters Thesis
Full Text:: alignment through dielectrophoresis reported by (a) Lee et al. (b) Jiang et al

Electronic Conduction and Ionic Diffusion in (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-based Thin Films, Electronic Conduction and Ionic Diffusion in (Bi0.5Na0.5)TiO3-(Bi0.5K0.5)TiO3-based Thin Films

Creator:: Walenza-Slabe, Joel
Abstract:: Solid solutions based on the perovskite ferroelectrics Bi₀.₅Na₀.₅TiO₃ (BNT) and Bi₀.₅K₀.₅TiO₃ (BKT) might someday replace current Pb-based ferroelectric and piezoelectric devices. This is one goal of the Restrictions on Hazardous Substances (RoHS) guidelines seeking to limit Pb in consumer devices. Although the Bi-based ferroelectrics are well suited to the task...
Resource Type:: Dissertation

Light soaking in metal-halide perovskites

Creator:: Watts, C. Lowell
Abstract:: Despite climate change requiring the cutback of fossil fuel consumption, the world continues to increase its energy demands each year. To meet the ambitious goals outlined during the Paris Agreement in 2015, which set a goal to limit global warming to 1.5°C [1], changes in energy production methods are necessary....
Resource Type:: Dissertation
Full Text:: injection. Reproduced with permission from Lee, et al., Science 2012 [10

Measuring the Electric Field Dependence of Photocurrent Quantum Yield in Suspended Carbon Nanotube pn Junctions

Creator:: McCulley, Daniel R.
Abstract:: In nanoscale materials, the Coulombic interaction between electrons are stronger than in bulk materials. These stronger interactions, caused by confinement and reduced dielectric screening, have interesting consequences for light-matter interactions. In carbon nanotubes (CNTs), strong interactions can enhance the impact ionization process, and thus assist photocurrent generation in CNTs. Conversely,...
Resource Type:: Dissertation
Full Text:: . The people I worked with in the Minot lab made the days more productive and much more enjoyable. Lee

Part I: Synthetic studies toward the southern portion of Azaspiracid-1; Part II: Total synthesis of amphidinolide B₁ and the proposed structure of amphidinolide B₂

Creator:: Lu, Liang
Abstract:: The structural architecture present in marine toxin azaspiracid - 20 stereocenters, 9 rings, 3 separated spirocenters - has attracted considerable synthetic attention. Our efforts toward the synthesis of azaspiracid have led to the completion of both C₁-C₂₆ northern and C₂₇-C₄₀ southern halves. Herein, the synthesis of southern FGHI ring system...
Resource Type:: Dissertation
Full Text:: . Wei Kong and Prof. David Cann for their helpful advice and help. Additionally, I would like to

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:: Subramanian, Prof. David Cann, and Prof. Roy Haggerty, for their time and effort. The classes I took during

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