Plasmonic gold nanostructures: optical properties and application in mercury detection

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dc.contributor.advisor Iacopino, Daniela en Schopf, Carola 2016-01-07T15:14:02Z 2016-01-07T15:14:02Z 2015 2015
dc.identifier.citation Schopf, C. 2015. Plasmonic gold nanostructures: optical properties and application in mercury detection. PhD Thesis, University College Cork. en
dc.identifier.endpage 215
dc.description.abstract This thesis investigates the application of plasmonic gold nanostructures for mercury detection. Various gold and silver single nanostructures and gold nanostructure assemblies were characterised in detail by correlated single nanostructure spectroscopy and electron microscopy. Several routes for mercury detection were explored: plasmon resonance energy transfer (PRET) upon Hg2+ binding to immobilised gold nanoparticle-organic ligand hybrid structures and amalgamation of single immobilised gold nanorods upon chemical and upon electrochemical reduction of Hg2+ ions. The amalgamation approach showed large potential with extraordinary shifts of the nanorods’ scattering spectra upon exposure to reduced mercury; a result of compositional and morphological change induced in the nanorod by amalgamation with mercury. A shift of 5 nm could be recorded for a concentration as low 10 nM Hg2+. Through detailed time-dependent experiments insights into the amalgamation mechanism were gained and a model comprising 5 steps was developed. Finally, spectroelectrochemistry proved to be an excellent way to study in real time in-situ the amalgamation of mercury with gold nanorods paving the way for future work in this field. en
dc.description.sponsorship European Commission (FP7-NMP HYSENS(263091)) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher University College Cork en
dc.rights © 2015, Carola Schopf. en
dc.rights.uri en
dc.subject Gold nanorods en
dc.subject Plasmonics en
dc.subject Mercury detection en
dc.subject Dark field spectroscopy en
dc.subject Spectroelectrochemistry en
dc.title Plasmonic gold nanostructures: optical properties and application in mercury detection en
dc.type Doctoral thesis en
dc.type.qualificationlevel Doctoral en
dc.type.qualificationname PhD (Science) en
dc.internal.availability Full text available en No embargo required en
dc.description.version Accepted Version
dc.contributor.funder European Commission en
dc.description.status Not peer reviewed en Tyndall National Institute en Chemistry en
dc.check.type No Embargo Required
dc.check.reason No embargo required en
dc.check.opt-out No en
dc.thesis.opt-out false
dc.check.embargoformat Not applicable en
dc.internal.conferring Spring Conferring 2016 en

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© 2015, Carola Schopf. Except where otherwise noted, this item's license is described as © 2015, Carola Schopf.
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