Title

High-Resolution Imaging Of Electric Field Enhancement And Energy-Transfer Quenching By A Single Silver Nanowire Using Qd-Modified Afm Tips

Keywords

aperture-less near-field fluorescence microscopy; atomic force microscopy; high-resolution optical imaging; plasmonic nanostructures; quantum-dot-modified AFM tips

Abstract

Plasmonic nanostructures can profoundly affect the optical properties of light absorbers and emitters. Using quantum dot-modified-atomic force microscopy (AFM) tips as a nanoscale light source, the topological features of a Ag nanowire and its effect on the fluorescence intensity and lifetime of the QDs can be simultaneously imaged with AFM spatial resolution. Modeling of the QD-nanowire interaction and the contrasts in the fluorescence intensity and lifetime images suggests that this novel method can be used for direct high-resolution mapping of the electric field distributions and energy-transfer quenching near metallic nanostructures. © 2013 American Chemical Society.

Publication Date

7-18-2013

Publication Title

Journal of Physical Chemistry Letters

Volume

4

Issue

14

Number of Pages

2284-2291

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/jz401051s

Socpus ID

84880528361 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84880528361

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