Show simple item record

dc.contributor.authorHoggard, Anneli
Wang, Lin-Yung
Ma, Lulu
Fang, Ying
You, Ge
Olson, Jana
Liu, Zheng
Chang, Wei-Shun
Ajayan, Pulickel M.
Link, Stephan
dc.date.accessioned 2015-03-16T16:56:09Z
dc.date.available 2015-03-16T16:56:09Z
dc.date.issued 2013
dc.identifier.citation Hoggard, Anneli, Wang, Lin-Yung, Ma, Lulu, et al.. "Using the Plasmon Linewidth To Calculate the Time and Efficiency of Electron Transfer between Gold Nanorods and Graphene." ACS Nano, 7, no. 12 (2013) American Chemical Society: 11209-11217. http://dx.doi.org/10.1021/nn404985h.
dc.identifier.urihttps://hdl.handle.net/1911/79345
dc.description.abstract We present a quantitative analysis of the electron transfer between single gold nanorods and monolayer graphene under no electrical bias. Using single-particle dark-field scattering and photoluminescence spectroscopy to access the homogeneous linewidth, we observe broadening of the surface plasmon resonance for gold nanorods on graphene compared to nanorods on a quartz substrate. Because of the absence of spectral plasmon shifts, dielectric interactions between the gold nanorods and graphene are not important and we instead assign the plasmon damping to charge transfer between plasmon-generated hot electrons and the graphene that acts as an efficient acceptor. Analysis of the plasmon linewidth yields an average electron transfer time of 160 ± 30 fs, which is otherwise difficult to measure directly in the time domain with single-particle sensitivity. In comparison to intrinsic hot electron decay and radiative relaxation, we furthermore calculate from the plasmon linewidth that charge transfer between the gold nanorods and the graphene support occurs with an efficiency of ∼10%. Our results are important for future applications of light harvesting with metal nanoparticle plasmons and efficient hot electron acceptors as well as for understanding hot electron transfer in plasmon-assisted chemical reactions.
dc.language.iso eng
dc.publisher American Chemical Society
dc.rights This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society
dc.title Using the Plasmon Linewidth To Calculate the Time and Efficiency of Electron Transfer between Gold Nanorods and Graphene
dc.type Journal article
dc.contributor.funder Welch Foundation
dc.contributor.funder Office of Naval Research
dc.contributor.funder National Science Foundation
dc.contributor.funder Army Research Office
dc.contributor.funder American Chemical Society Petroleum Research Fund
dc.contributor.funder National Institutes of Health
dc.citation.journalTitle ACS Nano
dc.contributor.org Laboratory for Nanophotonics
dc.subject.keywordplasmon damping
hot electrons
one-photon photoluminescence
single-particle spectroscopy
surface plasmon resonance
graphene
plasmon linewidth
dc.citation.volumeNumber 7
dc.citation.issueNumber 12
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1021/nn404985h
dc.identifier.pmcid PMC3932108
dc.identifier.pmid 24266755
dc.identifier.grantID C-1664 (Welch Foundation)
dc.identifier.grantID N00014-10-1-0989 (Office of Naval Research)
dc.identifier.grantID CHE-0955286 (National Science Foundation)
dc.identifier.grantID MURI W911NF-12-1-0407 (Army Research Office)
dc.identifier.grantID 50191-DNI6 (American Chemical Society Petroleum Research Fund)
dc.identifier.grantID CNS-0821727 (National Science Foundation)
dc.identifier.grantID MURI N000014-09-1-1066 (Office of Naval Research)
dc.identifier.grantID T32EB009379 (National Institutes of Health)
dc.identifier.grantID Graduate Research Fellowship (0940902) (National Science Foundation)
dc.type.publication post-print
dc.citation.firstpage 11209
dc.citation.lastpage 11217


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record