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Spring 2016

Deutsch, Kelsey C

Silicon nanocrystals (SiNCs) have unique properties manifested at nanometer dimensions. The optoelectronic properties of silicon nanocrystals depend on size and surface chemistry. Investigation into the electronic and optical nature of SiNCs can facilitate the synthesis of efficient optical and...

Spring 2011

Sirtonski, Matthew R.

Aromatic ethers (AEs) have been combined with poly(9,9-dioctylfluorene) (PFO) to improve spectral stability in PFO systems. Compared to neat PFO, PFO/AE blends were found to have decreased ‘g-bands’ following heating in air. Some were further found to induce and maintain β-phase emission. The...

Fall 2024

Glockzin, Brayden D.

Despite the widespread use of hydrofluoric acid (HF) in the preparation of silicon surfaces, the true nature of fluorinated surface species remains unclear. Here, an array of characterization techniques led by solid-state nuclear magnetic resonance spectroscopy is employed to uncover the nature...

Spring 2024

O'Connor, Kevin

Hydrogen silsesquioxane (HSQ) is a versatile material with a lengthy history in the synthesis of silicon nanocrystals (SiNCs). Although SiNCs are an exciting material for many optical, electronic, and biological applications, the focal point of this thesis challenges many of the preconceived...

Fall 2020

Thiessen, Alyxandra N.

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...

Spring 2012

Kelly, Joel Alexander

Group 14 semiconductor nanocrystals exhibit size-dependent optoelectronic properties through the influence of quantum size effects, notably intense photoluminescence (PL). A crucial step toward the realization of their technological potential is the development of effective methods to control the...

Spring 2013

Murray, Adrian H

The work described in this thesis focuses on two central topics: (1) the synthesis of carbon-rich macrocycles as model compounds of the carbon allotrope graphyne and the study of their electronic properties, and (2) the electrochemical investigation of the properties of substituted pentacene...

Fall 2024

Ni, Chuyi

High-entropy alloy nanoparticles and compounds exhibit significant potential in various emerging energy storage and conversion fields due to their compositional flexibility for precise tuning of desired functionalities. The research described in this thesis aims to explore germanium-based...

Spring 2020

Hossain, Md Asjad

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...

Fall 2022

Milburn, Leanne A

Throughout this thesis, methods for tailoring nanoparticles are broadly discussed and demonstrated experimentally. The main objective of this work was to help bridge the gap between fundamental materials science and global concerns by contributing to the development of functional nanomaterial...