dc.creator | Beam, Jeremiah Cooper | |
dc.date.accessioned | 2020-08-21T21:31:27Z | |
dc.date.available | 2016-10-05 | |
dc.date.issued | 2016-04-08 | |
dc.identifier.uri | https://etd.library.vanderbilt.edu/etd-03242016-152047 | |
dc.identifier.uri | http://hdl.handle.net/1803/11243 | |
dc.description.abstract | Developing plasma-mediated methods to achieve local control of materials deposition at moderate temperatures is a topic of current interest. We report a novel method of obtaining crystalline coatings on soft substrates, advancing fabrication of energy-related functional materials, such as photovoltaic devices. Confined-plume chemical deposition (CPCD) occurs when pulsed laser irradiation initiates decomposition of chemical precursors with formation of a reaction plume (T roughly equal to 3000 K) under spatial and temporal confinement, resulting in nucleated growth or deposition of microcrystalline thin-film coatings. Temporal confinement of laser pulses allows residual heat to dissipate throughout the substrate material, minimizing collateral thermal damage. This process has been demonstrated using both visible (Nd:YLF, 527-nm) and infrared (Ti:Sapphire, 800-nm; Er:YAG, 2.94-µm) tabletop lasers as the irradiation source. Formation of ceramic (ReB2, MnB2), semiconductor (CdS), or piezoelectric (ZnO) microcrystalline coatings on polymer and biological substrates will be presented. Characterization methods include powder x-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectral (EDS), and Raman spectroscopy (where appropriate), and evaluation of the adhesion between ReB2/polymer samples. | |
dc.format.mimetype | application/pdf | |
dc.subject | chemical deposition | |
dc.subject | materials synthesis | |
dc.title | Confined-Plume Chemical Deposition of Transition Metal Borides and Chalcogenides Initiated by Pulsed, Infrared, Tabletop Lasers | |
dc.type | dissertation | |
dc.contributor.committeeMember | David E. Cliffel | |
dc.contributor.committeeMember | Timothy P. Hanusa | |
dc.contributor.committeeMember | Borislav L. Ivanov | |
dc.contributor.committeeMember | David W. Wright | |
dc.type.material | text | |
thesis.degree.name | PHD | |
thesis.degree.level | dissertation | |
thesis.degree.discipline | Chemistry | |
thesis.degree.grantor | Vanderbilt University | |
local.embargo.terms | 2016-10-05 | |
local.embargo.lift | 2016-10-05 | |
dc.contributor.committeeChair | Charles M. Lukehart | |