Exploiting plasmons to sense interfacial changes at the nanoscale

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dc.contributor.advisorLandes, Christy F.en_US
dc.creatorFlatebo, Charlotteen_US
dc.date.accessioned2021-08-16T18:09:19Zen_US
dc.date.available2023-08-01T05:01:07Zen_US
dc.date.created2021-08en_US
dc.date.issued2021-07-26en_US
dc.date.submittedAugust 2021en_US
dc.date.updated2021-08-16T18:09:19Zen_US
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.en_US
dc.embargo.terms2023-08-01en_US
dc.format.mimetypeapplication/pdfen_US
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>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/111177en_US
dc.language.isoengen_US
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.en_US
dc.subjectplasmonicsen_US
dc.subjectnanohybridsen_US
dc.subjectelectrochemistryen_US
dc.subjectheterogeneityen_US
dc.titleExploiting plasmons to sense interfacial changes at the nanoscaleen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentApplied Physicsen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelDoctoralen_US
thesis.degree.majorApplied Physics/Chemistryen_US
thesis.degree.nameDoctor of Philosophyen_US
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