Fundamental Investigations of Surface and Subsurface Damage, and Wear in Diamond Wire Sawing of Silicon
29 May 2019 | Contributor(s):: Kumar, Arkadeep
Advisors: Shreyes N. Melkote, Steven Danyluk, Richard W. Neu, Christopher Saldana, Chris ArconaAn impediment to widespread adoption of photovoltaics is the high cost of solar cells, which use mono- or multi-crystalline silicon wafers as substrates. The wafers are cut from silicon ingots using the...
Measurement and Analysis of Wire Sawing Induced Residual Stress in Photovoltaic Silicon Wafers
27 May 2016 | Contributor(s):: Pogue, Vanessa Ann
Advisors: Shreyes N. Melkote, Steven S. Danyluk, Ajeet RohatgiThe manufacturing process of a photovoltaic Si wafer comprises of first a high temperature heating process to produce a Si ingot from polycrystalline Silicon, which is then cut into bricks and subsequently sawn into wafers using a wire...
Development of Oxidation Resistant Molybdenum-Silicon-Boron Composites
07 Jan 2016 | Contributor(s):: Marshall, Peter
Advisors: Joe Cochran, Thomas Sanders, Arun Gokhale, Robert Speyer, David L. McDowell, Richard NeuThe development of molybdenum - silicon - boron (Mo-Si-B) composites having a combination of high temperature strength, creep, and oxidation residence has the potential to substantially increase the...
Development of Low-Cost and High-Efficiency Commercial Size N-Type Silicon Solar Cells
21 Sep 2015 | Contributor(s):: Ryu, Kyung Sun
Advisors: Ajeet Rohatgi, Gee-Kung Chang, Thomas K. Gaylord, Shreyes N. Melkote, Miroslav M. BegovicThe objective of the research in this thesis was to develop high-efficiency n-type silicon solar cells at low-cost to reach grid parity. This was accomplished by reducing the electrical and optical...
Highly Structured Nano-Composite Anodes for Secondary Lithium Ion Batteries
08 Jun 2015 | Contributor(s):: Evanoff, Kara
Advisors: Gleb Yushin, W. Jud Ready, Tom Fuller, Brent W. Carter, Rosario GerhardtInterest in high performance portable energy devices for electronics and electric vehicles is the basis for a significant level of activity in battery research in recent history. Li-ion batteries are of particular...
Characterization of Residual Stresses in Birefringent Materials Applied to Multicrystalline Silicon Wafers
12 Jan 2015 | Contributor(s):: Skenes, Kevin
Advisors: Steven S. Danyluk, William J. Wepfer, Shreyes N. Melkote, Peter Hesketh, Laurence Jacobs, Ajeet RohatgiBirefringence has been used to study transparent materials since 1815, and is based on the decomposition of a polarized ray of light into two distinct rays when passing through an...
Reconfigurable Integrated Photonic Circuits on Silicon
22 May 2014 | Contributor(s):: Alipour Motaallem, Seyed Payam
Advisors: Ali Adibi, Stephen E. Ralph, John A. Buck, Gee-Kung Chang, Joseph W. PerryIntegrated optics as a platform for signal processing offers significant benefits such as large bandwidth, low loss, and a potentially high degree of reconfigurability. Silicon (Si) has unique advantages as a...
Influence of the Environment on the Fatigue Properties of Alumina Ultra-Thin Coatings and Silicon and Nickel Thin Films
20 Sep 2013 | Contributor(s):: Baumert, Eva K.
Advisors: Olivier N. Pierron, Oliver Brand, Samuel Graham, Steven D. Antolovich, David L. McDowellThis dissertation presents the investigation of three thin film materials used in microelectromechanical systems (MEMS): alumina, silicon, and nickel. For this purpose, novel experimental techniques...
Development of Metal-Assisted Chemical Etching as a 3D Nanofabrication Platform
06 May 2012 | Contributor(s):: Hildreth, Owen James
Advisors: C. P. Wong, Paul Kohl, Jason Nadler, Christopher Summers, Gleb YushinThe considerable interest in nanomaterials and nanotechnology over the last decade is attributed to Industry's desire for lower cost, more sophisticated devices and the opportunity that nanotechnology presents for...