Novel Approach Of Using Polyvinylidene Fluoride Langmuir-Schaefer Film On Graphene-Polyaniline Nanocomposite For Supercapacitor Applications,
2013
University of South Florida
Novel Approach Of Using Polyvinylidene Fluoride Langmuir-Schaefer Film On Graphene-Polyaniline Nanocomposite For Supercapacitor Applications, Venkata Priyanka Bolisetty
USF Tampa Graduate Theses and Dissertations
Supercapacitors are well known for their improvised power density compared to batteries. Ongoing research is mainly focused on improving the energy density of supercapacitors by using different electrode material nanocomposites. The recent research has revealed that graphene (G)-polyaniline (PANI) nanocomposite could be a promising material for supercapacitor applications. The supercapacitor is also associated with self-leakage current regardless of any electrode material. The main objectives of the project are to: (i) synthesize highly fabricate supercapacitor based of G-PANI electrode; (ii) improve the energy density of supercapacitor by applying ultrathin monolayer/monolayers film electrode surface. It is crucial to either improve or retain …
Properties Of Peg, Ppg And Their Copolymers Influence On The Gap-Fill Characteristics Of Damascene Interconnects,
2013
University at Albany, State University of New York
Properties Of Peg, Ppg And Their Copolymers Influence On The Gap-Fill Characteristics Of Damascene Interconnects, Kevin Ryan
Legacy Theses & Dissertations (2009 - 2024)
A laboratory scale plating cell was built that provided reproducible bottom-up fill results for the electrochemical deposition of copper in damascene features. Several techniques used in the full wafer plating tool were incorporated into the setup to accurately control the process conditions. These techniques included but were not limited to a voltage controlled `hot-entry' step, a custom coupon holder to allow sample rotation, a secondary thief electrode and an automatic entry system. The results of qualification experiments are presented to demonstrate that precise control was realized along with repeatable partial fill plating results. The qualified setup was then used to …
Ion Beam Modification Of Single Crystal Sapphire For High Temperature Optical Waveguiding,
2013
University at Albany, State University of New York
Ion Beam Modification Of Single Crystal Sapphire For High Temperature Optical Waveguiding, William Spratt
Legacy Theses & Dissertations (2009 - 2024)
High temperature environments (>1000°C) provide a significant challenge for fiber optic based sensing due to the poor physical properties of silica fiber at elevated temperature. Not only does silica soften above 1000°C, but the dopants that are responsible for the refractive index change between the core and cladding diffuse, reducing the fibers effectiveness as a waveguide. Single-crystal sapphire fiber has the potential to supplement fiber sensing at high temperature however sapphire fiber is unclad and no cladding methods exist that withstand high temperatures. In addition to higher losses the lack of a cladding also leads to decreased sensitivity due …
Novel Resist Systems For Euv Lithography : Ler, Chain-Scission, Nanoparticle And More,
2013
University at Albany, State University of New York
Novel Resist Systems For Euv Lithography : Ler, Chain-Scission, Nanoparticle And More, Brian Cardineau
Legacy Theses & Dissertations (2009 - 2024)
Extreme Ultraviolet (EUV) lithography is currently the best option for replacing 193-nm lithography in future IC fabrication. For EUV to be successful, however, there are a number of challenges that must be overcome. Current resist designs struggle to meet the demands of future lithography nodes. We propose the best way to overcome these obstacles is through the design of novel resist systems.
Ion Beam Nano-Engineering Of Erbium Doped Silicon For Enhanced Light Emission At 1.54 Microns,
2013
University at Albany, State University of New York
Ion Beam Nano-Engineering Of Erbium Doped Silicon For Enhanced Light Emission At 1.54 Microns, Sebastian Naczas
Legacy Theses & Dissertations (2009 - 2024)
Erbium doped silicon is of great interest as a potential light source in Silicon Photonics research due to its light emission at 1.54 μm, which corresponds to the minimal loss of optical transmission in silica fibers for telecommunications. In this thesis a basic mechanism for excitation and de-excitation of Er in Si is reviewed. Based on such fundamental understanding, an innovative approach is proposed and implemented to improve Er luminescence properties through the formation of metal nanoparticles via impurity gettering in Si nanocavities.
Study Of Nickel Silicide Formation By Physical Vapor Deposition Techniques,
2013
University at Albany, State University of New York
Study Of Nickel Silicide Formation By Physical Vapor Deposition Techniques, Shanti Pancharatnam
Legacy Theses & Dissertations (2009 - 2024)
Metal silicides are used as contacts to the highly n-doped emitter in photovoltaic devices. Thin films of nickel silicide (NiSi) are of particular interest for Si-based solar cells, as they form at lower temperature and consume less silicon. However, interfacial oxide limits the reduction in sheet resistance. Hence, different diffusion barriers were investigated with regard to optimizing the conductivity and thermal stability.
White-Light And Infrared Emission From Sicxoy-Based Materials,
2013
University at Albany, State University of New York
White-Light And Infrared Emission From Sicxoy-Based Materials, Vasileios Nikas
Legacy Theses & Dissertations (2009 - 2024)
The development of a Si-based light source has attracted a high level of attention due to its potential unique advantages. For one, the monolithic integration of photonics on on-chip level along with the microelectronics devices would enhance the data processing rate. Additionally the cost per transmitted/processed information capacity can be significantly reduced.
Control Over Variability In Nonvolatile Hafnium-Oxide Resistive-Switching Memory Based On Modeling Of The Switching Processes,
2013
University at Albany, State University of New York
Control Over Variability In Nonvolatile Hafnium-Oxide Resistive-Switching Memory Based On Modeling Of The Switching Processes, Brian Jerad Butcher
Legacy Theses & Dissertations (2009 - 2024)
Resistive random access memory (ReRAM) technology presents an attractive option for embedded non-volatile (NV) memory systems if its variability (cycle-to-cycle and device-to-device) can be controlled. This dissertation has focused on investigations to identify key mechanisms and parameters which dominate ReRAM variability, and the development of subsequent experimental and simulation-based tools to address this variability. The first component of these efforts entailed identification of the modern-day non-volatile memory technological gaps that have driven the operational requirements and challenges for resistive memory as an emerging NV memory.
Mueller Based Scatterometry And Optical Characterization Of Semiconductor Materials,
2013
University at Albany, State University of New York
Mueller Based Scatterometry And Optical Characterization Of Semiconductor Materials, Gangadhara Raja Muthinti
Legacy Theses & Dissertations (2009 - 2024)
Scatterometry is one of the most useful metrology methods for the characterization and control of critical dimensions (CD) and the detailed topography of periodic structures found in microelectronics fabrication processes. Spectroscopic ellipsometry (SE) and normal incidence reflectometry (NI) based scatterometry are the most widely used optical methodologies for metrology of these structures. Evolution of better optical hardware and faster computing capabilities led to the development of Mueller Matrix (MM) based Scatterometry (MMS). Dimensional metrology using full Mueller Matrix (16 element) scatterometry in the wavelength range of 245nm-1000nm was discussed in this work. Unlike SE and NI, MM data provides complete …
Microfluidic-Assisted Atomic Force Microscopy For The Mechanical Characterization Of Soft Biological Materials,
2013
University at Albany, State University of New York
Microfluidic-Assisted Atomic Force Microscopy For The Mechanical Characterization Of Soft Biological Materials, Aaron Peter Mosier
Legacy Theses & Dissertations (2009 - 2024)
Viable methods for bacterial biofilm remediation require a fundamental understanding of biofilm mechanical properties and their dependence on dynamic environmental conditions. Mechanical test data, quantifying elasticity or adhesion, may be used to perform physical modeling of biofilm behavior, thus enabling the development of novel remediation strategies. To achieve real-time, dynamic measurements of these properties, a novel analysis platform consisting of a microfluidic flowcell device has been designed and fabricated for in situ analysis using atomic force microscopy (AFM) and confocal laser scanning microscopy (CLSM). The flowcell consists of microfluidic channels for biofilm establishment that are then converted into an open …
Probe Immobilization Strategies And Device Optimization For Novel Transistor-Based Dna Sensors,
2013
University at Albany, State University of New York
Probe Immobilization Strategies And Device Optimization For Novel Transistor-Based Dna Sensors, Nicholas Michael Fahrenkopf
Legacy Theses & Dissertations (2009 - 2024)
The research presented herein exploits the terminal phosphate group on single stranded DNA molecules for direct immobilization to surfaces utilized in semiconductor device fabrication with the end goal of transistor based DNA sensors. As a demonstration of the feasibility of this immobilization strategy DNA immobilization to a variety of surfaces was evaluated for usefulness in biosensor applications. It was determined that DNA can be directly immobilized to a variety of semiconductor surfaces through the terminal phosphate group. Further, this immobilization allows for the hybridization of the immobilized DNA to complementary target in solution. The immobilization of DNA to hafnium dioxide …
Charged Particle Imaging Methods For Cd Metrology Of Sub 22nm 3d Device Structures,
2013
University at Albany, State University of New York
Charged Particle Imaging Methods For Cd Metrology Of Sub 22nm 3d Device Structures, Aron Joel Cepler
Legacy Theses & Dissertations (2009 - 2024)
Critical dimension scanning electron microscopes (CD-SEMs) are used to perform highly accurate dimensional metrology on patterned features. In order to ensure optimal feedback for process control, it is necessary that these tools produce highly reproducible measurements. As the smallest device features continue to shrink, and new challenging high aspect ratio (HAR) structures are being introduced, gaps are appearing between process control measurements that are necessary for high volume manufacturing and the capabilities of the CD-SEM. Two possible routes for solving this problem include improvement of the existing CD-SEM technology or the replacement of the CD-SEM.
The Localized Manipulation Of The Extracellular Matrix Within 3d Collagen Cell Cultures Using A Biomems Device,
2013
University at Albany, State University of New York
The Localized Manipulation Of The Extracellular Matrix Within 3d Collagen Cell Cultures Using A Biomems Device, Ashley N. Clark
Legacy Theses & Dissertations (2009 - 2024)
Approximately 90% of all cancer related deaths can be attributed to the occurrence of metastasis. There are multiple changes that occur within the tumor microenvironment that have been correlated with the onset of metastasis. Different cell types, extracellular matrices, blood vessels, and soluble factors are some of the various components that make up the complex, heterogeneous microenvironment that exists within a tumor. The dynamic relationship between tumor cells and their surrounding environment makes it an ideal environment to study triggers of metastasis, such as the modification of the extracellular matrix. Changes in the multiple aspects of extracellular matrix composition have …
Plasmonic-Based High Temperature Chemical Sensing Using Gold Nanoparticles Embedded In Metal Oxide Thin Films,
2013
University at Albany, State University of New York
Plasmonic-Based High Temperature Chemical Sensing Using Gold Nanoparticles Embedded In Metal Oxide Thin Films, Nicholas Joy
Legacy Theses & Dissertations (2009 - 2024)
Thin metal oxide films embedded with Au nanoparticles (AuNPs) have been investigated as high temperature localized surface plasmon resonance (LSPR) based sensing materials to monitor H2, CO, and NO2 at a temperature of 500°C. Applications for this technology include turbine engines as well as other combustion environments where it is important to monitor emission gases for both regulatory purposes as well as combustion control. These high temperature applications, which may be oxidizing or reducing in nature, present challenges to sensor reliability and selectivity, and have therefore necessitated the development of novel sensing devices. While there has been …
Impacts Of Ion Irradiation On Hfo2-Based Resistive Random Access Memory Devices,
2013
University at Albany, State University of New York
Impacts Of Ion Irradiation On Hfo2-Based Resistive Random Access Memory Devices, Xiaoli He
Legacy Theses & Dissertations (2009 - 2024)
The impacts of ion irradiation on so-called vacancy-change mechanism (VCM) and electrochemical-metallization mechanism (ECM) ReRAM devices based on HfO2 are investigated using various ion sources: H+ (1 MeV), He+ (1 MeV), N+ (1MeV), Ne+ (1.6 MeV) and Ar+ (2.75 MeV) over a range of total doses (105 - 1011 rad(Si)) and fluences (1012 - 1015 cm-2). VCM-ReRAM devices show robust resistive switching function after all irradiation experiments. VCM resistive switching parameters including set voltage (Vset), reset voltage (Vreset), on-state resistance (Ron) and off-state resistance (Roff) exhibited, in most cases, modest changes …
Understanding Defect Interactions In Si Ultra-Shallow P-N Junctions Formed By Very Low Energy Boron Implantation,
2013
University at Albany, State University of New York
Understanding Defect Interactions In Si Ultra-Shallow P-N Junctions Formed By Very Low Energy Boron Implantation, Lakshmanan H. Vanamurthy
Legacy Theses & Dissertations (2009 - 2024)
One of the biggest challenges in the scaling of CMOS devices is the formation of a highly activated, abrupt, defect free Source drain extension (SDE) region. This is especially difficult with p-FET's because of the (1) Boron diffusion co-efficient enhancement from Transient enhanced diffusion (TED) and (2) low solid solubility of
Electrical And Optical Characterization Of Carbon Nanotube Diodes,
2013
University at Albany, State University of New York
Electrical And Optical Characterization Of Carbon Nanotube Diodes, Argyrios Malapanis
Legacy Theses & Dissertations (2009 - 2024)
Carbon nanotubes are good candidates for future applications, including nanoelectronic and nanophotonic devices. Their quasi-one dimensional (1D) character offers appealing device properties. These include reduced carrier scattering, carrier mobility up to two orders of magnitude higher than that of materials used in state-of-the-art computer chips today, current densities rivaling those of the best semiconductors, enhanced optical absorption, and band gaps tunable with tube diameter and doping. Recent breakthroughs in research point to the possibility of placing nanotubes precisely on substrates with densities approaching that of transistors on today's computer chips in a way that's integratable with existing Si-based technology. Such …
The Effect Of Energy Deposition On Pattern Resolution In Electron Beam Lithography,
2013
University at Albany, State University of New York
The Effect Of Energy Deposition On Pattern Resolution In Electron Beam Lithography, Ananthan Raghunathan
Legacy Theses & Dissertations (2009 - 2024)
Electron beam lithography is one of the most important tools for nanofabrication. Electron beam lithography has consistently been able to offer higher resolution, typically better than 10 nm or so, compared to other techniques. In this work the contribution of electron-substrate interaction to pattern resolution is investigated.
Local Area Mask Patterning Of Extreme Ultraviolet Lithography Reticles For Native Defect Analysis,
2013
University at Albany, State University of New York
Local Area Mask Patterning Of Extreme Ultraviolet Lithography Reticles For Native Defect Analysis, Adam Lyons
Legacy Theses & Dissertations (2009 - 2024)
Understanding the nature and behavior of native defects on EUV reticles, particularly their printability, is of critical importance to the successful implementation of EUV lithography for high volume manufacturing, as will be demonstrated in the upcoming chapters. Previous defect characterization work has focused on the examination of programmed defects, native defects on blank reticles, and unaligned native defects on patterned reticles. Each of these approaches has drawbacks, which will be discussed in detail, and the aim of this research is to address these deficiencies by developing a method to pattern features of interest over native defects, enabling the direct observation …
Defining An Optimal Surface Chemistry For Pluripotent Stem Cell Culture In 2d And 3d,
2013
University at Albany, State University of New York
Defining An Optimal Surface Chemistry For Pluripotent Stem Cell Culture In 2d And 3d, Michael Roy Zonca Jr.
Legacy Theses & Dissertations (2009 - 2024)
Surface chemistry is critical for growing pluripotent stem cells in an undifferentiated state. There is great potential to engineer the surface chemistry at the nanoscale level to regulate stem cell adhesion. However, the challenge is to identify the optimal surface chemistry of the substrata for ES cell attachment and maintenance. Using a high-throughput polymerization and screening platform, a chemically defined, synthetic polymer grafted coating that supports strong attachment and high expansion capacity of pluripotent stem cells has been discovered using mouse embryonic stem (ES) cells as a model system. This optimal substrate, N-[3-(Dimethylamino)propyl] methacrylamide (DMAPMA) that is grafted on 2D …
