ArticleNature chemistry2020
Impact of non-equilibrium molecular packings on singlet fission in microcrystals observed using 2D white-light microscopy.
Article in Nature chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Aggregation affords productive photocatalysis.Nature chemistry · 2026Article
- An experimental perspective on symmetry breaking and the singlet fission mechanism in solid-state materials.Chemical science · 2026Review
- Optimizing Detection Schemes for Broadband Pump-Probe Microscopy.Microscopy research and technique · 2026Article
- Microstructure determines crystallinity-driven singlet fission efficiency in diF-TES-ADT.Scientific reports · 2025Article
- Two-Dimensional Electronic Spectroscopy of Rhodamine 700 Using an 8 fs Ultrabroadband Laser Source and Full-Wavelength Reference Detection.The journal of physical chemistry. A · 2025Article
- Pressure-Promoted Triplet-Pair Separation in Singlet-Fission TIPS-Pentacene Nanofilms Revealed by Ultrafast Spectroscopy.Nanomaterials (Basel, Switzerland) · 2024Article
- Low- and high-frequency vibrations synergistically enhance singlet exciton fission through robust vibronic resonances.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Progress and Prospects in Optical Ultrafast Microscopy in the Visible Spectral Region: Transient Absorption and Two-Dimensional Microscopy.The journal of physical chemistry. C, Nanomaterials and interfaces · 2023Review
- Breaking Barriers in Ultrafast Spectroscopy and Imaging Using 100 kHz Amplified Yb-Laser Systems.Accounts of chemical research · 2023Article
- Ultrafast infrared nano-imaging of far-from-equilibrium carrier and vibrational dynamics.Nature communications · 2022Article
- Singlet fission from upper excited singlet states and polaron formation in rubrene film.RSC advances · 2021Article
- Leaving the Limits of Linearity for Light Microscopy.The journal of physical chemistry. C, Nanomaterials and interfaces · 2020Article
- Molecular versus Excitonic Disorder in Individual Artificial Light-Harvesting Systems.Journal of the American Chemical Society · 2020Article
- A Proposed Method to Obtain Surface Specificity with Pump-Probe and 2D Spectroscopies.The journal of physical chemistry. A · 2020Article
- Femtosecond Transient Absorption Microscopy of Singlet Exciton Motion in Side-Chain Engineered Perylene-Diimide Thin Films.The journal of physical chemistry. A · 2020Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Singlet fission, the process of splitting a singlet exciton into two triplet excitons, has been proposed as a mechanism for improving the efficiency of future photovoltaic devices. In organic semiconductors exhibiting singlet fission, the geometric relationship between molecules plays an important role by setting the intermolecular couplings that determine the system energetics. Here, we spatially image TIPS-pentacene microcrystals using ultrafast two-dimensional white-light microscopy and discover a low-energy singlet state sparsely distributed throughout the microcrystals, with higher concentrations at edges and morphological defects. The spectra of these singlet states are consistent with slip-stacked molecular geometries and increased charge-transfer couplings. The picosecond-timescale kinetics of these low-energy singlet states matches that of the correlated triplet-pair state, which we attribute to singlet/triplet-pair interconversion at these sites. Our observations support the conclusion that small populations of geometries with favourable energetics can play outsized roles in singlet fission processes.
Identifiers
31792384What OpenQuestion holds
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.