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Full-Text Articles in Nanoscience and Nanotechnology
Fabrication Of Multifunctional Carbon Coated Cobalt Ferrite Core/Shell Nanostructures By Pulsed Laser Ablation, Joy Roy
MSU Graduate Theses
Considerable research work is going on worldwide among the therapeutic scientific communities to use magnetic nanoparticles (NPs) as a controlled drug delivery system. Challenges to use those NPs for such in-vivo applications successfully are mainly biocompatibility and the functionality of those NPs. Addressing the needs, in this project, we synthesized carbon-coated cobalt ferrite (CFO) core-shell nanoparticles (CSNPS) by ablating a solution of toluene and CFO NPs with varying number of pulsed laser shots. The structure of the CSNPs then investigated through X-ray diffraction (XRD), Raman spectroscopy, and also with the high-resolution transmission electron microscopy (HRTEM). The XRD analysis shows that …
High Performance Silver Diffusive Memristors For Future Computing, Rivu Midya
High Performance Silver Diffusive Memristors For Future Computing, Rivu Midya
Masters Theses
Sneak path current is a significant remaining obstacle to the utilization of large crossbar arrays for non-volatile memories and other applications of memristors. A two-terminal selector device with an extremely large current-voltage nonlinearity and low leakage current could solve this problem. We present here a Ag/oxide-based threshold switching (TS) device with attractive features such as high current-voltage nonlinearity (~1010), steep turn-on slope (less than 1 mV/dec), low OFF-state leakage current (~10-14 A), fast turn ON/OFF speeds (<75/250 ns), and good endurance (>108 cycles). The feasibility of using this selector with a typical memristor has been demonstrated by physically integrating them …
Texture And Microstructure Of Ipvd Copper Manganese Seed In 1 Μm & 70 Nm Wide Damascene Trenches, Robert Stuart Brown
Texture And Microstructure Of Ipvd Copper Manganese Seed In 1 Μm & 70 Nm Wide Damascene Trenches, Robert Stuart Brown
Legacy Theses & Dissertations (2009 - 2024)
This thesis describes the grain texture and microstructure of Ionized Physical Vapor Deposition (iPVD) Copper Manganese seed in 1 µm and 70 nm wide damascene trenches. Using Transmission Electron Microscopy (TEM) imaging and diffraction pattern analysis, the grain size and general orientation of the grains were determined. It was found that the 1 µm wide trenches contained larger grains and more texture than that of the 70 nm wide trenches. While this thesis builds upon previous work by Brendan O’Brien in the Dunn group, one significantly different finding will be presented regarding the structure on the sidewall of the trenches. …
The Investigation Of Nanoscale Effects On Schottky Interfaces And The Scattering Rates Of High Resistivity Metals, Christopher Anthony Durcan
The Investigation Of Nanoscale Effects On Schottky Interfaces And The Scattering Rates Of High Resistivity Metals, Christopher Anthony Durcan
Legacy Theses & Dissertations (2009 - 2024)
Understanding the transport of electrons through materials and across interfaces is fundamental to modern day electronics. As electrons travel, interactions with defects within the crystal lattice induce scattering which gives rise to resistivity. At the interface between two materials, electrostatic barriers exist which can impede the flow of electrons. The work of this thesis is to further the understanding of electron transport by measuring the transport across metal-semiconductor interfaces at the nanoscale and measure scattering phenomena in metals. The measurement technique ballistic electron emission microscopy (BEEM) was used due to its ability to probe the scattering processes within a metal …
The Geometry And Sensitivity Of Ion-Beam Sculpted Nanopores For Single Molecule Dna Analysis, Ryan Connor Rollings
The Geometry And Sensitivity Of Ion-Beam Sculpted Nanopores For Single Molecule Dna Analysis, Ryan Connor Rollings
Graduate Theses and Dissertations
In this dissertation, the relationship between the geometry of ion-beam sculpted solid-state nanopores and their ability to analyze single DNA molecules using resistive pulse sensing is investigated. To accomplish this, the three dimensional shape of the nanopore is determined using energy filtered and tomographic transmission electron microscopy. It is shown that this information enables the prediction of the ionic current passing through a voltage biased nanopore and improves the prediction of the magnitude of current drop signals when the nanopore interacts with single DNA molecules. The dimensional stability of nanopores in solution is monitored using this information and is improved …