ArticleNature communications2021
Singlet exciton fission in a modified acene with improved stability and high photoluminescence yield.
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 11 papers.
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Who cites it
11 citing papers in PubMed.
- The Lowest Excited State of Heptacenes Is Dark.The journal of physical chemistry letters · 2025Article
- Computational Discovery of Intermolecular Singlet Fission Materials Using Many-Body Perturbation Theory.The journal of physical chemistry. C, Nanomaterials and interfaces · 2024Review
- Room-temperature quantum coherence of entangled multiexcitons in a metal-organic framework.Science advances · 2024Article
- Aza-Cibalackrot: Turning on Singlet Fission Through Crystal Engineering.Journal of the American Chemical Society · 2023Article
- Near-Infrared Absorption Features of Triplet-Pair States Assigned by Photoinduced-Absorption-Detected Magnetic Resonance.The journal of physical chemistry letters · 2023Article
- Total Luminescence Spectroscopy for Quantification of Temperature Effects on Photophysical Properties of Photoluminescent Materials.ACS measurement science au · 2023Article
- Inverse Design of Tetracene Polymorphs with Enhanced Singlet Fission Performance by Property-Based Genetic Algorithm Optimization.Chemistry of materials : a publication of the American Chemical Society · 2023Article
- The Rise and Future of Discrete Organic-Inorganic Hybrid Nanomaterials.ACS physical chemistry Au · 2022Review
- Parallel triplet formation pathways in a singlet fission material.Nature communications · 2022Article
- Flavanthrene derivatives as photostable and efficient singlet exciton fission materials.Chemical science · 2022Article
- Highly luminescent scintillating hetero-ligand MOF nanocrystals with engineered Stokes shift for photonic applications.Nature communications · 2022Article
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Authors and funding
11 authors.
Funding
Abstract
We report a fully efficient singlet exciton fission material with high ambient chemical stability. 10,21-Bis(triisopropylsilylethynyl)tetrabenzo[a,c,l,n]pentacene (TTBP) combines an acene core with triphenylene wings that protect the formal pentacene from chemical degradation. The electronic energy levels position singlet exciton fission to be endothermic, similar to tetracene despite the triphenylenes. TTBP exhibits rapid early time singlet fission with quantitative yield of triplet pairs within 100 ps followed by thermally activated separation to free triplet excitons over 65 ns. TTBP exhibits high photoluminescence quantum efficiency, close to 100% when dilute and 20% for solid films, arising from triplet-triplet annihilation. In using such a system for exciton multiplication in a solar cell, maximum thermodynamic performance requires radiative decay of the triplet population, observed here as emission from the singlet formed by recombination of triplet pairs. Combining chemical stabilisation with efficient endothermic fission provides a promising avenue towards singlet fission materials for use in photovoltaics.
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Registered trials
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