ArticleNano letters2024
Single-Molecule Time-Resolved Spectroscopy in a Tunable STM Nanocavity.
Article in Nano letters, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Tunable Luminescence from a Single Free-Base Porphyrin Molecule by Controlled Access to Optically Active States.ACS nano · 2026Article
- Locally induced Stark shifts of collective excitonic modes in polyradical aggregates.Beilstein journal of nanotechnology · 2026Article
- Ultrafast Coulomb blockade in an atomic-scale quantum dot.Nature communications · 2025Article
- Review
- Roadmap for Photonics with 2D Materials.ACS photonics · 2025Review
- Single-Molecule Phosphorescence and Intersystem Crossing in a Coupled Exciton Plasmon System.ACS nano · 2025Article
- Disentangling the components of a multiconfigurational excited state in isolated chromophore with light-scanning-tunneling microscopy.Nature communications · 2025Article
- Upgrade of a variable temperature scanning tunneling microscope for nanometer-scale spectromicroscopy.MethodsX · 2025Article
- Selective excitation of vibrations in a single molecule.Nature communications · 2024Article
- Multiscale modeling of surface enhanced fluorescence.Nanoscale advances · 2024Article
- Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Spontaneous fluorescence rates of single-molecule emitters are typically on the order of nanoseconds. However, coupling them with plasmonic nanostructures can substantially increase their fluorescence yields. The confinement between a tip and sample in a scanning tunneling microscope creates a tunable nanocavity, an ideal platform for exploring the yields and excitation decay rates of single-molecule emitters, depending on their coupling strength to the nanocavity. With such a setup, we determine the excitation lifetimes from the direct time-resolved measurements of phthalocyanine fluorescence decays, decoupled from the metal substrates by ultrathin NaCl layers. We find that when the tip is approached to single molecules, their lifetimes are reduced to the picosecond range due to the effect of coupling with the tip-sample nanocavity. On the other hand, ensembles of the adsorbed molecules measured without the nanocavity manifest nanosecond-range lifetimes. This approach overcomes the drawbacks associated with the estimation of lifetimes for single molecules from their respective emission line widths.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.