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Skip to Search Results- 22Graduate and Postdoctoral Studies (GPS), Faculty of
- 22Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 1Chemistry, Department of
- 1Chemistry, Department of/Research Data and Materials (Chemistry)
- 1Oil Sands Research and Information Network (OSRIN)
- 1Oil Sands Research and Information Network (OSRIN)/OSRIN Technical Reports
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Fall 2023
Plasmonics deals with the collective excitations of light coupled with free electrons in matter. It has widespread use in the fields of biosensing and nanoscale waveguiding due to the enhancement of the electric fields. My thesis deals with an important frontier in the field of plasmonics by...
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Spring 2022
Nanomaterials based upon Group 14 elements (i.e., silicon and germanium) are drawing a great deal of attention from researchers since they are biocompatible and exhibit unique optical and electronic properties. Surface functionalization, which is one of the most critical aspects of nanomaterial...
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Silicon Nanoparticles from the Inside Out: Exploring the Internal Structure of Silicon Nanoparticles and Its Impact on Their Photoluminescence
DownloadFall 2020
Silicon nanoparticles (SiNPs) have garnered significant attention as a biologically compatible alternative to traditional quantum dots. SiNPs are well suited for a wide range of applications due to their photoluminescence (PL) and chemical properties. These advantageous properties can be...
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Fall 2020
The synthesis of germanium nanomaterials with well-defined surface chemistry is of considerable interest, not only because of general scientific curiosity but also because of their vast potential applications in optoelectronics, energy storage, and the semiconductor industry. Covalently bonded...
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Interfacing Silicon-Based Quantum Dots with Proteins for Biological and Sensing Applications
DownloadFall 2020
This dissertation presents the preparation of functional bioinorganic hybrids from silicon-based quantum dots (SiQDs) and enzymes and the use of SiQDs and green fluorescent protein as ratiometric photoluminescent sensors for nerve agents. Chapter 2 discusses the preparation of water-soluble...
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Synthesis, Surface Functionalization of Germanium Nanoparticles, and Their Application in Polymer Hybrid Solar Cells
DownloadSpring 2020
Germanium nanoparticles (GeNPs) have immense potential in various applications, such as opto-electronics, batteries, bioimaging, etc. Germanium has a small band gap (0.67 eV in bulk), large exciton Bohr radius (~24 nm), high absorption coefficient (ca. 2.0 × 105 cm 1 at 2 eV), and high carrier...
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Spring 2020
On a perfect hydrogen-terminated Si(100)-2x1 surface, each surface silicon atom is capped with exactly one atom of hydrogen. When one of the capping hydrogen atoms is removed, the now unsatisfied orbital of the underlying silicon atom is exposed at that site. This site is better known as a...
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Observing and Manipulating Single Electrons Confined to Silicon Dangling Bond Ensembles with Non-Contact Atomic Force Microscopy
DownloadFall 2018
Non-contact atomic force microscopy (nc-AFM) is capable of inducing and resolving single-electron charge transitions of surface adsorbates. Here, these techniques are extended by studying the charge configurations of dangling bond (DB) ensembles on the hydrogen-terminated silicon surface. nc-AFM...
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Fall 2017
This thesis will discuss the charge dynamics of dangling bonds (DBs) on the hydrogen terminated Si(100) surface under the effects of temperature and perturbations from local electric fields. The experimental methods are then extended towards DB chains. Electronic time resolved imaging techniques...
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Spring 2017
We present the characterization of close-spaced linear dangling bond structures, or dangling bond chains, two to seven dangling bonds long, on a hydrogen terminated silicon (100)-2x1 surface using a scan- ning tunnelling microscope. Constant height differential conductance maps reveal their local...