ArticleNature communications2021
Picosecond time-resolved photon antibunching measures nanoscale exciton motion and the true number of chromophores.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Highly efficient exciton-exciton annihilation in single conjugated polymer chains.Nature communications · 2026Article
- Localization of single molecules with structured illumination and structured detection.Light, science & applications · 2025Article
- Enhancing spectroscopy and microscopy with emerging methods in photon correlation and quantum illumination.Nature nanotechnology · 2025Review
- Bayesian Inference of Binding Kinetics from Fluorescence Time Series.The journal of physical chemistry. B · 2025Article
- The Quantum Information Science Challenge for Chemistry.The journal of physical chemistry letters · 2025Review
- Exciton annihilation in molecular aggregates suppressed through quantum interference.Nature chemistry · 2023Article
- Detection of Single Charge Trapping Defects in Semiconductor Particles by Evaluating Photon Antibunching in Delayed Photoluminescence.Nano letters · 2023Article
- The Pursuit of Shortwave Infrared-Emitting Nanoparticles with Bright Fluorescence through Molecular Design and Excited-State Engineering of Molecular Aggregates.ACS nanoscience Au · 2022Review
- Interfacing DNA nanotechnology and biomimetic photonic complexes: advances and prospects in energy and biomedicine.Journal of nanobiotechnology · 2022Review
- Modeling Non-additive Effects in Neighboring Chemically Identical Fluorophores.The journal of physical chemistry. B · 2022Article
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The particle-like nature of light becomes evident in the photon statistics of fluorescence from single quantum systems as photon antibunching. In multichromophoric systems, exciton diffusion and subsequent annihilation occurs. These processes also yield photon antibunching but cannot be interpreted reliably. Here we develop picosecond time-resolved antibunching to identify and decode such processes. We use this method to measure the true number of chromophores on well-defined multichromophoric DNA-origami structures, and precisely determine the distance-dependent rates of annihilation between excitons. Further, this allows us to measure exciton diffusion in mesoscopic H- and J-type conjugated-polymer aggregates. We distinguish between one-dimensional intra-chain and three-dimensional inter-chain exciton diffusion at different times after excitation and determine the disorder-dependent diffusion lengths. Our method provides a powerful lens through which excitons can be studied at the single-particle level, enabling the rational design of improved excitonic probes such as ultra-bright fluorescent nanoparticles and materials for optoelectronic devices.
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Registered trials
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