Investigation and Characterization of Composite Silica Aerogel Nanostructures Obtained Via Magnetron Sputtering

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dc.contributor.advisorFreire-Gormaly, Marina
dc.contributor.advisorO'Brien, Paul
dc.contributor.authorCapacchione, Amanda
dc.date.accessioned2024-03-18T17:59:41Z
dc.date.available2024-03-18T17:59:41Z
dc.date.issued2024-03-16
dc.date.updated2024-03-16T10:48:29Z
dc.degree.disciplineMechanical Engineering
dc.degree.levelMaster's
dc.degree.nameMASc - Master of Applied Science
dc.description.abstractThis study explores the deposition of Copper (Cu) onto hydrophilic Silica Aerogel (SA) monoliths using magnetron sputtering, with Cu thicknesses of 20 nm, 50 nm, and 100 nm. Leveraging the mesoporous nanostructure of SA, a Cu-sputtered SA nanocomposite was fabricated, creating a non-homogeneous nanocomposite material. Trace amounts of Cu penetrate up to 10 µm into the SA structure, as revealed by SEM-EDS analysis. The resulting nanocomposite, characterized by spectrophotometric examination, exhibited UV scattering, high transmittance, and absorption in the visible range. FTIR spectra revealed reduced transmission in the near-infrared (NIR) and mid-infrared (MIR) regions with increasing Cu thickness. Infrared imaging showed a photothermal effect. The temperatures of samples comprising 100 nm of Cu sputtered onto Silica aerogels reached 94.8°C under solar-simulated irradiation at an intensity of 100 mW/cm^2. These findings provide fundamental context to an under explored area, laying the groundwork for alternative thin-film deposition techniques like magnetron sputtering deposition for the fabrication of metallic, nanocomposite Silica aerogel supports.
dc.identifier.urihttps://hdl.handle.net/10315/41883
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectMechanical engineering
dc.subjectMaterials Science
dc.subject.keywordsSilica aerogel
dc.subject.keywordsAerogel
dc.subject.keywordsNanoparticles
dc.subject.keywordsNanostructures
dc.subject.keywordsNanocomposites
dc.subject.keywordsComputational modeling
dc.subject.keywordsPhotothermal effect
dc.subject.keywordsThermal imaging
dc.subject.keywordsWater purification
dc.subject.keywordsAir purification
dc.subject.keywordsFractal
dc.subject.keywordsPorous materials
dc.subject.keywordsMagnetron sputtering
dc.subject.keywordsPhysical vapor deposition
dc.subject.keywordsPVD
dc.subject.keywordsSol-gel
dc.subject.keywordsSEM
dc.subject.keywordsScanning electron microscopy
dc.subject.keywordsEDS
dc.subject.keywordsEDX
dc.subject.keywordsElectron dispersive x-ray
dc.subject.keywordsFTIR
dc.subject.keywordsUV-Vis
dc.subject.keywordsCopper
dc.subject.keywordsCu
dc.subject.keywordsSilica
dc.subject.keywordsThin film
dc.subject.keywordsMatlab
dc.subject.keywordsDLCA modeling
dc.subject.keywordsDLCA
dc.subject.keywordsRLA
dc.subject.keywordsPlasmon resonance
dc.titleInvestigation and Characterization of Composite Silica Aerogel Nanostructures Obtained Via Magnetron Sputtering
dc.typeElectronic Thesis or Dissertation

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