ArticleThe journal of physical chemistry letters2021
Photoluminescence Enhancement, Blinking Suppression, and Improved Biexciton Quantum Yield of Single Quantum Dots in Zero Mode Waveguides.
Article in The journal of physical chemistry letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- High-Throughput Fabrication of Zero-Mode Waveguide Nanoaperture Arrays with Sol-Gel Nanoimprint Lithography for Enhanced Single Molecule Fluorescence Detection.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Excitation Intensity-Dependent Quantum Yield of Semiconductor Nanocrystals.The journal of physical chemistry letters · 2023Article
- Plasmon-Enhanced Fluorescence of Single Quantum Dots Immobilized in Optically Coupled Aluminum Nanoholes.The journal of physical chemistry letters · 2023Article
- Optical Dynamics of Copper-Doped Cadmium Sulfide (CdS) and Zinc Sulfide (ZnS) Quantum-Dots Core/Shell Nanocrystals.Nanomaterials (Basel, Switzerland) · 2022Article
- Gold Ion Beam Milled Gold Zero-Mode Waveguides.Nanomaterials (Basel, Switzerland) · 2022Article
- Zero-mode waveguides and nanopore-based sequencing technologies accelerate single-molecule studies.Biophysics and physicobiology · 2022Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
The capability of quantum dots to generate both single and multiexcitons can be harnessed for a wide variety of applications, including those that require high optical gain. Here, we use time-correlated photoluminescence (PL) spectroscopy to demonstrate that the isolation of single CdSeTe/ZnS core-shell, nanocrystal quantum dots (QDs) in Zero Mode Waveguides (ZMWs) leads to a significant modification in PL intensity, blinking dynamics, and biexciton behavior. QDs in aluminum ZMWs (AlZMWs) exhibited a 15-fold increase in biexciton emission, indicating a preferential enhancement of the biexciton radiative decay rate as compared to the single exciton rate. The increase in biexciton behavior was accompanied by a decrease in blinking events due to a shortening in the dark state residence time. These results indicate that plasmon mediated enhanced decay rates of QDs in AlZMWs lead to substantial changes in the photophysical properties of single quantum dots, including an increase in biexciton behavior.
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Registered trials
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