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Skip to Search Results- 2Wu, Nathanael Lap-Yan
- 1Achal, Roshan
- 1Alam, Kazi, MM
- 1Chowdhury, Fatema R
- 1Chung, Deborah K
- 1De los Reyes, Glenda B
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Spring 2016
This thesis explores the dynamics and sensing performance of silicon quantum dot (SiQD) ensembles coupled to the whispering gallery modes (WGMs) of spherical and cylindrical microcavities. The first project investigated the possibility of observing Purcell effects in an ensemble of QDs coupled to...
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Spring 2015
This thesis focuses on the photoluminescence (PL) of free-standing silicon quan- tum dots (QDs). Large changes in the emission spectrum were found to occur when the QDs were exposed to different environments while undergoing short-wavelength laser irradiation, a phenomenon that was the main focus...
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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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Fall 2010
This thesis describes the fabrication and characterization of integrated hollow Bragg waveguides fabricated by controlled thin film buckling. Hollow waveguides based on two different set of materials were studied. In the first case, thermal tuning of air-core dimensions was studied using...
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Spring 2014
As one of the most commonly applied semiconductors, nanostructured silicon has received considerable attention over the past several decades due to its suitable band gap for light harvesting (1.2 eV for bulk crystal and up to 1.9 eV for nanocrystals), unique tunable photoluminescence (PL) and...
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Observing and Manipulating Single Electrons Confined to Silicon Dangling Bond Ensembles with Non-Contact Atomic Force Microscopy
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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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Spring 2012
Silicon nanocrystals (Si-NCs) have been suggested for sensing and lasing applications due to their low-toxicity and compatibility with existing microelectronic technologies. Their broad luminescence, due to homogeneous (150 meV or 40 nm at room temperature) and inhomogeneous broadening, may...
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Spring 2012
The present thesis describes preliminary studies required for evaluating silicon nanocrystals (Si-NCs) as photothermal (PT) therapy agents and drug delivery vehicles. Group 14 semiconductor NCs are of particular interest for these applications because of their tailorable optical response and...