Exploiting plasmons to sense interfacial changes at the nanoscale

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dc.contributor.advisorLandes, Christy F.
dc.creatorFlatebo, Charlotte
dc.date.accessioned2021-08-16T18:09:19Z
dc.date.available2023-08-01T05:01:07Z
dc.date.created2021-08
dc.date.issued2021-07-26
dc.date.submittedAugust 2021
dc.date.updated2021-08-16T18:09:19Z
dc.description.abstractProbing chemistry, especially at the nanoscale, provides insight into the mechanisms governing chemical reactions at interfaces and potential avenues for materials development. As a class of materials, plasmonic nanomaterials are a promising approach for probing chemistry at interfaces. When excited with an incident electric field like light, plasmonic nanomaterials exhibit localized surface plasmon resonances (LSPR). The LSPR scattering spectrum is sensitive to the size, shape and local environment of the nanoparticle. However, this sensitivity can be a limiting factor in applications of plasmonic materials in complex chemical environments. Contaminants in the environment can corrode or dissolve the nanomaterials, irreversibly changing the LSPR. The intrinsic heterogeneity of colloidally synthesized nanoparticles limits LSPR sensitivity to changes in the dielectric environment at the ensemble level. In my work, I use single-particle spectroelectrochemistry and correlated scanning electron microscopy to investigate the overall stability and utility of plasmonic nanomaterials in complex chemical environments. I demonstrate that we can utilize the plasmon to report on chemistry in complex environments and provide mechanistic insight into dissolution, polymer collapse, and future work in switchable electron density tuning in single plasmonic nanoparticles. Understanding the mechanisms governing these chemical processes at the nanoscale builds foundational science to support future technological developments in electronics, catalysis, and sensing.
dc.embargo.terms2023-08-01
dc.format.mimetypeapplication/pdf
dc.identifier.citationFlatebo, Charlotte. "Exploiting plasmons to sense interfacial changes at the nanoscale." (2021) Diss., Rice University. <a href="https://hdl.handle.net/1911/111177">https://hdl.handle.net/1911/111177</a>.
dc.identifier.urihttps://hdl.handle.net/1911/111177
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectplasmonics
dc.subjectnanohybrids
dc.subjectelectrochemistry
dc.subjectheterogeneity
dc.titleExploiting plasmons to sense interfacial changes at the nanoscale
dc.typeThesis
dc.type.materialText
thesis.degree.departmentApplied Physics
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelDoctoral
thesis.degree.majorApplied Physics/Chemistry
thesis.degree.nameDoctor of Philosophy
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