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Automated Scanning Probe Lithography With N-Alkanethiol Self-Assembled Monolayers On Au(111): Application For Teaching Undergraduate Laboratories, Treva T. Brown, Zorabel M. Lejeune, Kai Liu, Sean Hardin, Jie Ren Li, Kresimir Rupnik, Jayne C. Garno
Automated Scanning Probe Lithography With N-Alkanethiol Self-Assembled Monolayers On Au(111): Application For Teaching Undergraduate Laboratories, Treva T. Brown, Zorabel M. Lejeune, Kai Liu, Sean Hardin, Jie Ren Li, Kresimir Rupnik, Jayne C. Garno
Faculty Publications
Controllers for scanning probe instruments can be programmed for automated lithography to generate desired surface arrangements of nanopatterns of organic thin films, such as n-alkanethiol self-assembled monolayers (SAMs). In this report, atomic force microscopy (AFM) methods of lithography known as nanoshaving and nano-grafting are used to write nanopatterns within organic thin films. Commercial instruments provide software to control the length, direction, speed, and applied force of the scanning motion of the tip. For nanoshaving, higher forces are applied to an AFM tip to selectively remove regions of the matrix monolayer, exposing bare areas of the gold substrate. Nanografting is accomplished …
Fabrication Of Organosilane Nanostructures As Selective Sites For Surface Chemical Reactions, Kathie Lee Lusker
Fabrication Of Organosilane Nanostructures As Selective Sites For Surface Chemical Reactions, Kathie Lee Lusker
LSU Doctoral Dissertations
Naturally self-assembled mesospheres provide a practical route for controlling the arrangement of materials on surfaces at the nanoscale. Periodic arrays of well-defined nanostructures can be produced with different nanomaterials and interpattern spacings. Results presented in this dissertation demonstrate particle lithography methods developed for fabricating arrays of organosilane nanostructures. Surfaces were designed for the selective deposition of polymers and nanoparticles to produce multicomponent nanopatterns. The approaches for surface patterning provide new directions for studying surface chemistry at the molecular-level, and have practical application for emerging photovoltaic thin film technologies. Atomic force microscopy (AFM) provides unique capabilities for molecular visualization and ultrasensitive …
Dynamic Measurements With Scanning Probe Microscopy: Surface Studies Using Nanostructured Test Platforms Of Metalloporphyrins, Nanoparticles And Amyloid Fibrils, Wilson K. Serem
LSU Doctoral Dissertations
A hybrid imaging mode for characterization of magnetic nanomaterials has been developed, using atomic force microscopy (AFM) combined with electromagnetic sample actuation. Instead of using a coated AFM probe as a magnetic sensor; our strategy is to use a nonmagnetic probe with contact mode AFM to characterize the vibration of magnetic and superparamagnetic nanomaterials responding to the flux of an AC electromagnetic field. We refer to the hybrid imaging mode as magnetic sample modulation (MSM-AFM). An oscillating magnetic field is produced by applying an AC current to a wire coil solenoid placed under the sample stage for tuning selected parameters …