Search
Skip to Search Results- 14Photoluminescence
- 3Silicon
- 2Gallium arsenide semiconductors
- 2Quantum dots
- 2Silicon Nanocrystals
- 2Silicon nanocrystals
- 1Chowdhury, Fatema R
- 1Chung, Deborah K
- 1De los Reyes, Glenda B
- 1Islam, Muhammad Amirul
- 1Kelly, Joel Alexander
- 1Li, Ziqi
-
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...
-
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...
-
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...
-
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...
-
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...
-
Spring 2017
Zinc Oxide (ZnO) is a promising wide band gap semiconductor with exceptional electrical and optical properties. Thin film ZnO can be used for a wide variety of electronic and optoelectronic device applications. The first step on the way to achieving good quality devices is to grow optimum quality...
-
Fall 2011
A capillary-type fluorescent-core microcavity refractive index sensor based on whispering gallery mode (WGM) resonances is presented. The device consists of a glass microcapillary with a thin layer of fluorescent silicon quantum dots (QDs) coated on the channel surface. The high index of the QD...
-
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...