English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/181097
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

A single hydrogen molecule as an intensity chopper in an electrically driven plasmonic nanocavity

AuthorsMerino, Pablo; Roslawska, A.; Leon, C. C.; Grewal, A.; Große, C.; González, C.; Kuhnke, K.; Kern, K.
KeywordsPhoton bunching
Correlation spectroscopy
Molecular dynamics
Plasmonic antenna
Physisorbed hydrogen
Issue Date17-Dec-2018
PublisherAmerican Chemical Society
CitationNano Letters 19: 235-241 (2019)
AbstractPhoton statistics is a powerful tool for characterizing the emission dynamics of nanoscopic systems and their photophysics. Recent advances that combine correlation spectroscopy with scanning tunneling microscopy induced luminescence (STML) have allowed the measurement of the emission dynamics from individual molecules and defects, demonstrating their nature as single-photon emitters. The application of correlation spectroscopy to the analysis of the dynamics of a well-characterized adsorbate system in an ultrahigh vacuum remained to be demonstrated. Here, we combine single-photon time correlations with STML to measure the dynamics of individual H molecules between a gold tip and an Au(111) surface. An adsorbed H molecule performs recurrent excursions below the tip apex. We use the fact that the presence of the H molecule in the junction modifies plasmon emission to study the adsorbate dynamics. Using the H molecule as a chopper for STM-induced optical emission intensity, we demonstrate bunching in the plasmonic photon train in a single measurement over 6 orders of magnitude in the time domain (from microseconds to seconds) that takes only a few seconds. Our findings illustrate the power of using photon statistics to measure the diffusion dynamics of adsorbates with STML.
Description7 pags., 4 figs.
Publisher version (URL)http://doi.org/10.1021/acs.nanolett.8b03753
Identifiersdoi: 10.1021/acs.nanolett.8b03753
issn: 1530-6992
Appears in Collections:(CFMAC-IFF) Artículos
(ICMM) Artículos
Files in This Item:
File Description SizeFormat 
A single hydrogen.pdf Embargoed until December 17, 20192,32 MBAdobe PDFThumbnail
View/Open    Request a copy
Supporting Information.pdf1,04 MBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.