Modified Prompt and Delayed Kinetics in a Strongly Coupled Organic Microcavity Containing a Multiresonance TADF Emitter
Bibliographic record
Abstract
Exciton polaritons are collective matter–light excitations that can be spaced up to 1 eV away from the bare molecular excited states. This hints at their potential to modify molecular emission processes. In the vast majority of cases, however, the observed emission rates from exciton polaritons remain nearly unchanged from those of the bare molecule and can be explained through radiative pumping of polaritons by dark molecular excited states. In this study, we observe a reduction in the prompt and delayed emission rates from exciton polaritons in a microcavity containing molecules that show multiresonance thermally activated delayed fluorescence. We find that most of our experimental observations are due to the existence of molecular configurations supporting excimers in the film. In the presence of strong coupling, polariton emission at the excimer energy shows the same kinetics observed at the monomer energy. Using a semiclassical model to describe the polariton kinetics, we find that this can be explained by the transfer of polaritons initially populated by the monomers to the dark states, followed by re-emission at lower energies. At the lowest temperatures, the longest-lived component of the delayed emission lifetime still cannot be understood via this mechanism.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".