ArticleScience advances2021
Nuclear dynamics of singlet exciton fission in pentacene single crystals.
Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 54 citations in OpenAlex.
- Excitons make quantum leap in just 2.5 femtoseconds.Light, science & applications · 2026Article
- High-order harmonic generation in an organic molecular crystal.Nature communications · 2025Article
- Microstructure determines crystallinity-driven singlet fission efficiency in diF-TES-ADT.Scientific reports · 2025Article
- Machine learning photodynamics decode multiple singlet fission channels in pentacene crystal.Nature communications · 2025Article
- Excimer formation in zinc-phthalocyanine revealed using ultrafast electron diffraction.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Mono- and Bichromophores Formed from Perylene Monoimide Diesters: Competition between Intramolecular Charge Transfer and Intermolecular Singlet Exciton Fission.The journal of physical chemistry. A · 2024Article
- Ultrafast Time-Domain Spectroscopy Reveals Coherent Vibronic Couplings upon Electronic Excitation in Crystalline Organic Thin Films.The journal of physical chemistry letters · 2024Article
- Element-Specific Ultrafast Lattice Dynamics in Monolayer WSeNano letters · 2024Article
- Supramolecular scaffold-directed two-dimensional assembly of pentacene into a configuration to facilitate singlet fission.Science advances · 2024Article
- Direct Observation of Ultrafast Lattice Distortions during Exciton-Polaron Formation in Lead Halide Perovskite Nanocrystals.ACS nano · 2023Article
- Chemical Modifications Suppress Anharmonic Effects in the Lattice Dynamics of Organic Semiconductors.ACS materials Au · 2022Article
- Nanoscale coherent phonon spectroscopy.Science advances · 2022Article
- Direct observation of ultrafast singlet exciton fission in three dimensions.Nature communications · 2022Article
- A New Frontier in Exciton Transport: Transient Delocalization.The journal of physical chemistry letters · 2022Review
Corrections and comments
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Singlet exciton fission (SEF) is a key process for developing efficient optoelectronic devices. An aspect rarely probed directly, yet with tremendous impact on SEF properties, is the nuclear structure and dynamics involved in this process. Here, we directly observe the nuclear dynamics accompanying the SEF process in single crystal pentacene using femtosecond electron diffraction. The data reveal coherent atomic motions at 1 THz, incoherent motions, and an anisotropic lattice distortion representing the polaronic character of the triplet excitons. Combining molecular dynamics simulations, time-dependent density-functional theory, and experimental structure factor analysis, the coherent motions are identified as collective sliding motions of the pentacene molecules along their long axis. Such motions modify the excitonic coupling between adjacent molecules. Our findings reveal that long-range motions play a decisive part in the electronic decoupling of the electronically correlated triplet pairs and shed light on why SEF occurs on ultrafast time scales.
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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.