Browsing by Subject "Graphene"
Now showing items 1-20 of 22
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C60 Amino Acids and Peptides
(2011)Since the discovery of the buckyball in 1985, researchers have imagined its potential in fields ranging from materials science to medicinal chemistry. The unique size, shape and hydrophobicity of C 60 fullerene endow it ... -
Catalytic processes simulated at nano-scale: Growth of graphitic structures and functionalized graphene explained
(2011)Key dynamic processes at nano-scale, such as graphene hydrogenation and fluorination, and carbon nanotube (CNT) growth, cannot be observed in situ in real time. Nevertheless, such processes can be studied through complementary ... -
Charge Transport and Transfer at the Nanoscale Between Metals and Novel Conjugated Materials
(2012-09-05)Abstract Organic semiconductors (OSCs) and graphene are two classes of conjugated materials that hold promise to create flexible electronic displays, high speed transistors, and low-cost solar cells. Crucial to understanding ... -
Chemical and Physical Graphene Modifications
(2013-07-11)This dissertation is inspired by recent progress in the chemistry, physics, and nanotechnology of graphene, a single layer of carbon atoms. Studying and controllably modifying the ... -
CVD Grown Graphene-Based Materials: Synthesis, Characterization and Applications
(2015-04-22)Graphene draws a lot of attention due to its exceptional electrical, mechanical, thermal, optical and chemical properties. However, its zero bandgap is a limitation for electronics applications and its two-dimensional (2D) ... -
Dissolution, processing and fluid structure of graphene and carbon nanotube in superacids: The route toward high performance multifunctional materials.
(2012-09-05)Carbon allotropes have taken central stage of nanotechnology in the last two decades. Today, fullerenes, carbon nanotubes (CNTs), and graphene are essential building blocks for nanotechnology. Their superlative electrical, ... -
Engineered Nanomaterials for Energy Harvesting and Storage Applications
(2014-11-03)Energy harvesting and storage are independent mechanisms, each having their own significance in the energy cycle. Energy is generally harvested from temperature variations, mechanical vibrations and other phenomena which ... -
Exploration of Chemical Analysis Techniques for Nanoscale Systems
(2013-09-16)As the critical dimensions of many devices, especially electronics, continue to become smaller, the ability to accurately analyze the properties at ever smaller scales becomes necessary. Optical techniques, such as confocal ... -
Functionalized Nanoparticles for Biomedical Applications
(2013-09-16)Functionalization of nanoparticles often control the extent of their usage. With this in mind, I have explored methods of creating highly functionalized exfoliated graphite, by way of the Billups-Birch reduction, that can ... -
Graphene chemistry: Synthesis and modulation
(2012)This thesis investigates the chemistry of graphene from its basic synthesis to further modulation of its structure, geometry and surface chemical functional groups. A series of wet chemistry and dry chemistry experiments ... -
Graphene Photonic Devices for Terahertz and Mid-Infrared
(2013-11-08)Graphene and other strictly two-dimensional materials are the rising stars on the horizon of material science, condensed matter physics and engineering. The richness of optical and electronic properties of graphene attract ... -
Implementation of Hot Electrons in Hybrid Antenna-Graphene Structures
(2013-09-16)Graphene, a one-atom-thick sheet of hexagonally packed carbon atoms, is a novel material with high electron mobility due to its unique linear and gapless electronic band structure. Its broadband absorption and unusual ... -
Infrared Spectroscopy of Graphene in Ultrahigh Magnetic Fields
(2012-09-05)Graphene – a two-dimensional honeycomb lattice of sp2-bonded carbon atoms – possesses unusual zero-gap band structure with linear band dispersions, accommodating photon-like, massless electrons that have exhibited a variety ... -
Manipulation of Carbon Nanostructures for Multifunctional Composite Materials
(2011)Composite fibers comprised of 5:95 wt ratio of ultra-short single walled carbon nanotubes (US-SWCNT):polyacrylonitrile (PAN) were spun using a dry-jet wet-spinning method followed by oxidative stabilization at 285 °C. The ... -
Metal-Free Dual Modal Contrast Agents Based on Fluorographene Quantum Dots
(2016)Fluorographene quantum dots prepared from fluorinated graphene oxide (FGO) show a linear dependence of the magnetization on the applied field. This is further supported by DFT calculations taking into account a few possible ... -
Nanoscale studies of CVD graphene and poly(3-hexylthiophene) thin films.
(2014-04-21)Transparent solar cell systems have garnered a great deal of attention as possible alternatives to silicon-based solar cells. While conventional silicon-based solar cells absorb solar energy in limited frequency ranges, ... -
One- and Two-Dimensional sp2-Carbon Nanomaterials: Synthesis, Properties, and Applications
(2015-03-27)The unifying objective of this thesis is to synthesize, control, modify, hybridize, interface, understand, and apply one- and two-dimensional sp2-carbon nanomaterials. The materials include graphene (2D), carbon nanotubes ... -
Optical Studies on Functionalized Graphene Systems
(2014-05-05)Graphene, the ‘wonder material’, has received a lot of attention for its excellent electronic properties. However, the lack of a band gap severely limits its use, especially in optoelectronic applications. Therefore, opening ... -
Synthesis and Application of Graphene Based Nanomaterials
(2015-04-08)Graphene, a two-dimensional sp2-bonded carbon material, has recently attracted major attention due to its excellent electrical, optical and mechanical properties. Depending on different applications, graphene and its derived ... -
Terahertz Dynamics of Quantum-Confined Electrons in Carbon Nanomaterials
(2012)The terahertz (THz) frequency range. 0.1 - 20 THz, exists between the microwave and infrared ranges and contains abundant information on the dynamics of charge and spin carriers in condensed matter systems. Since its advent ...
