ASU Electronic Theses and Dissertations
This collection includes most of the ASU Theses and Dissertations from 2011 to present. ASU Theses and Dissertations are available in downloadable PDF format; however, a small percentage of items are under embargo. Information about the dissertations/theses includes degree information, committee members, an abstract, supporting data or media.
In addition to the electronic theses found in the ASU Digital Repository, ASU Theses and Dissertations can be found in the ASU Library Catalog.
Dissertations and Theses granted by Arizona State University are archived and made available through a joint effort of the ASU Graduate College and the ASU Libraries. For more information or questions about this collection contact or visit the Digital Repository ETD Library Guide or contact the ASU Graduate College at gradformat@asu.edu.
- Mccartney, Martha
- 4 Arizona State University
- 2 Carpenter, Ray
- 2 Chamberlin, Ralph
- 1 Alford, Terry
- 1 Bennett, Peter
- 1 Crozier, Peter A
- more
- 1 Elhalawaty, Shereen
- 1 Menendez, Jose
- 1 Miller, Benjamin
- 1 Ouyang, Lu
- 1 Ponce, Fernando
- 1 Rez, Peter
- 1 Smith, David J
- 1 Smith, David J.
- 1 Treacy, Michael J.
- 1 Zhao, Wenfeng
- 4 English
- 4 Public
- Materials Science
- 3 TEM
- 2 Engineering
- 1 Co-Fe alloys
- 1 Electrodeposition
- 1 HgCdSe
- 1 HgCdTe
- more
- 1 II-VI
- 1 III-V
- 1 Illumination
- 1 In-Situ
- 1 Infrared
- 1 MBE
- 1 Magnetic Properties
- 1 Optics
- 1 Photocatalysis
- 1 Physics
- 1 STEM
- 1 Solar Energy
- 1 Transmission Electron Microscopy
- 1 Visible Light
- 1 characterization
- 1 heterostructure
- 1 superlattice
- Dwarf Galaxies as Laboratories of Protogalaxy Physics: Canonical Star Formation Laws at Low Metallicity
- Evolutionary Genetics of CORL Proteins
- Social Skills and Executive Functioning in Children with PCDH-19
- Deep Domain Fusion for Adaptive Image Classification
- Software Defined Pulse-Doppler Radar for Over-The-Air Applications: The Joint Radar-Communications Experiment
A system for illuminating a sample in situ with visible and UV light inside a transmission electron microscope was devised to study photocatalysts. There are many factors which must be considered when designing and building such a system. These include both mechanical, optical, and electron optical considerations. Some of the restrictions posed by the electron microscope column are significant, and care must be taken not to degrade the microscope's electron optical performance, or to unduly restrict the other current capabilities of the microscope. The nature of these various design considerations is discussed in detail. A description of the system that …
- Contributors
- Miller, Benjamin, Crozier, Peter A, Mccartney, Martha, et al.
- Created Date
- 2012
HgCdTe is the dominant material currently in use for infrared (IR) focal-plane-array (FPA) technology. In this dissertation, transmission electron microscopy (TEM) was used for the characterization of epitaxial HgCdTe epilayers and HgCdTe-based devices. The microstructure of CdTe surface passivation layers deposited either by hot-wall epitaxy (HWE) or molecular beam epitaxy (MBE) on HgCdTe heterostructures was evaluated. The as-deposited CdTe passivation layers were polycrystalline and columnar. The CdTe grains were larger and more irregular when deposited by HWE, whereas those deposited by MBE were generally well-textured with mostly vertical grain boundaries. Observations and measurements using several TEM techniques showed that the …
- Contributors
- Zhao, Wenfeng, Smith, David J., Mccartney, Martha, et al.
- Created Date
- 2011
Soft magnetic alloys play a significant role for magnetic recording applications and highly sensitivity magnetic field sensors. In order to sustain the magnetic areal density growth, development of new synthesis techniques and materials is necessary. In this work, the effect of oxygen incorporation during electrodeposition of CoFe alloys on magnetic properties, magnetoresistance and structural properties has been studied. Understanding the magnetic properties often required knowledge of oxygen distribution and structural properties of the grown films. Transmission electron microscopy (TEM) was a powerful tool in this study to correlate the oxygen-distribution nanostructure to the magnetic properties of deposited films. Off-axis electron …
- Contributors
- Elhalawaty, Shereen, Carpenter, Ray, Chamberlin, Ralph, et al.
- Created Date
- 2012
The research described in this dissertation has involved the use of transmission electron microcopy (TEM) to characterize the structural properties of II-VI and III-V compound semiconductor heterostructures and superlattices. The microstructure of thick ZnTe epilayers (~2.4 µm) grown by molecular beam epitaxy (MBE) under virtually identical conditions on GaSb, InAs, InP and GaAs (100) substrates were compared using TEM. High-resolution electron micrographs revealed a highly coherent interface for the ZnTe/GaSb sample, and showed extensive areas with well-separated interfacial misfit dislocations for the ZnTe/InAs sample. Lomer edge dislocations and 60o dislocations were commonly observed at the interfaces of the ZnTe/InP and …
- Contributors
- Ouyang, Lu, Smith, David J, Mccartney, Martha, et al.
- Created Date
- 2012