ArticleJournal of the American Chemical Society2019
Engineering Molecular Ligand Shells on Quantum Dots for Quantitative Harvesting of Triplet Excitons Generated by Singlet Fission.
Article in Journal of the American Chemical Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 62 citations in OpenAlex.
- Zero-Potential No-Discharge APCI Combined With pH and Colorimetric Measurements Reveals a Protein-Dependent Change in Albumin Proton Affinity Under Quantum-Dot Patch Exposure.Journal of mass spectrometry : JMS · 2026Article
- Singlet Fission Luminescent Solar Concentrators.Nano letters · 2025Article
- Molecular Orientation Controls Triplet Exciton Dynamics in Organic Molecules Coupled to Lanthanide-Doped Nanoparticles.Journal of the American Chemical Society · 2025Article
- Synchronized Photoluminescence and Electrical Mobility Enhancement in 2D WSJournal of the American Chemical Society · 2024Article
- Long-Lived Triplets from Singlet Fission in Pentacene-Decorated Helical Supramolecular Polymers.Journal of the American Chemical Society · 2024Article
- Computational Discovery of Intermolecular Singlet Fission Materials Using Many-Body Perturbation Theory.The journal of physical chemistry. C, Nanomaterials and interfaces · 2024Review
- Ligand-Directed Self-Assembly of Organic-Semiconductor/Quantum-Dot Blend Films Enables Efficient Triplet Exciton-Photon Conversion.Journal of the American Chemical Society · 2024Article
- Controlling Electronic Coupling of Acene Chromophores on Quantum Dot Surfaces through Variable-Concentration Ligand Exchange.ACS nano · 2023Article
- Efficient photon upconversion enabled by strong coupling between silicon quantum dots and anthracene.Nature chemistry · 2023Article
- Aza-Cibalackrot: Turning on Singlet Fission Through Crystal Engineering.Journal of the American Chemical Society · 2023Article
- Colloidal-ALD-Grown Metal Oxide Shells Enable the Synthesis of Photoactive Ligand/Nanocrystal Composite Materials.Journal of the American Chemical Society · 2023Article
- Triplet transfer from PbS quantum dots to tetracene ligands: is faster always better?Journal of materials chemistry. C · 2022Article
- The Rise and Future of Discrete Organic-Inorganic Hybrid Nanomaterials.ACS physical chemistry Au · 2022Review
- Dye-Sensitized Multiple Exciton Generation in Lead Sulfide Quantum Dots.Journal of the American Chemical Society · 2022Article
- Mechanistic insight into the chemical treatments of monolayer transition metal disulfides for photoluminescence enhancement.Nature communications · 2021Article
- Singlet exciton fission in a modified acene with improved stability and high photoluminescence yield.Nature communications · 2021Article
- Prospects of Coupled Organic-Inorganic Nanostructures for Charge and Energy Transfer Applications.Angewandte Chemie (International ed. in English) · 2021Review
- Article
- Strategies for Design of Potential Singlet Fission Chromophores Utilizing a Combination of Ground-State and Excited-State Aromaticity Rules.Journal of the American Chemical Society · 2020Article
- Mechanisms of triplet energy transfer across the inorganic nanocrystal/organic molecule interface.Nature communications · 2020Article
Corrections and comments
- Erratum issued
Authors and funding
12 authors at 3 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Singlet fission is an exciton multiplication process in organic molecules in which a photogenerated spin-singlet exciton is rapidly and efficiently converted to two spin-triplet excitons. This process offers a mechanism to break the Shockley-Queisser limit by overcoming the thermalization losses inherent to all single-junction photovoltaics. One of the most promising methods to harness the singlet fission process is via the efficient extraction of the dark triplet excitons into quantum dots (QDs) where they can recombine radiatively, thereby converting high-energy photons to pairs of low-energy photons, which can then be captured in traditional inorganic PVs such as Si. Such a singlet fission photon multiplication (SF-PM) process could increase the efficiency of the best Si cells from 26.7% to 32.5%, breaking the Shockley-Queisser limit. However, there has been no demonstration of such a singlet fission photon multiplication (SF-PM) process in a bulk system to date. Here, we demonstrate a solution-based bulk SF-PM system based on the singlet fission material TIPS-Tc combined with PbS QDs. Using a range of steady-state and time-resolved measurements combined with analytical modeling we study the dynamics and mechanism of the triplet harvesting process. We show that the system absorbs >95% of incident photons within the singlet fission material to form singlet excitons, which then undergo efficient singlet fission in the solution phase (135 ± 5%) before quantitative harvesting of the triplet excitons (95 ± 5%) via a low concentration of QD acceptors, followed by the emission of IR photons. We find that in order to achieve efficient triplet harvesting it is critical to engineer the surface of the QD with a triplet transfer ligand and that bimolecular decay of triplets is potentially a major loss pathway which can be controlled via tuning the concentration of QD acceptors. We demonstrate that the photon multiplication efficiency is maintained up to solar fluence. Our results establish the solution-based SF-PM system as a simple and highly tunable platform to understand the dynamics of a triplet energy transfer process between organic semiconductors and QDs, one that can provide clear design rules for new materials.
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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.