Plasmon damping depends on the chemical nature of the nanoparticle interface

dc.citation.articleNumbereaav0704
dc.citation.issueNumber3
dc.citation.journalTitleScience Advances
dc.citation.volumeNumber5
dc.contributor.authorFoerster, Benjamin
dc.contributor.authorSpata, Vincent A.
dc.contributor.authorCarter, Emily A.
dc.contributor.authorSönnichsen, Carsten
dc.contributor.authorLink, Stephan
dc.date.accessioned2019-12-06T15:32:23Z
dc.date.available2019-12-06T15:32:23Z
dc.date.issued2019
dc.description.abstractThe chemical nature of surface adsorbates affects the localized surface plasmon resonance of metal nanoparticles. However, classical electromagnetic simulations are blind to this effect, whereas experiments are typically plagued by ensemble averaging that also includes size and shape variations. In this work, we are able to isolate the contribution of surface adsorbates to the plasmon resonance by carefully selecting adsorbate isomers, using single-particle spectroscopy to obtain homogeneous linewidths, and comparing experimental results to high-level quantum mechanical calculations based on embedded correlated wavefunction theory. Our approach allows us to indisputably show that nanoparticle plasmons are influenced by the chemical nature of the adsorbates 1,7-dicarbadodecaborane(12)-1-thiol (M1) and 1,7-dicarbadodecaborane(12)-9-thiol (M9). These surface adsorbates induce inside the metal electric dipoles that act as additional scattering centers for plasmon dephasing. In contrast, charge transfer from the plasmon to adsorbates—the most widely suggested mechanism to date—does not play a role here.
dc.identifier.citationFoerster, Benjamin, Spata, Vincent A., Carter, Emily A., et al.. "Plasmon damping depends on the chemical nature of the nanoparticle interface." <i>Science Advances,</i> 5, no. 3 (2019) AAAS: https://doi.org/10.1126/sciadv.aav0704.
dc.identifier.digitaleaav0704.full
dc.identifier.doihttps://doi.org/10.1126/sciadv.aav0704
dc.identifier.urihttps://hdl.handle.net/1911/107794
dc.language.isoeng
dc.publisherAAAS
dc.rightsDistributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.titlePlasmon damping depends on the chemical nature of the nanoparticle interface
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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