Microstructural studies of organic light-emitting devices by Monte Carlo simulation of two-dimensional triangles
Bibliographic record
Abstract
The fast degradation of organic light-emitting devices (OLEDs) remains as the main obstacle to the commercialization of OLEDs. Among the failure mechanisms proposed, crystallization of the amorphous ${\mathrm{Alq}}_{3}$ film that leads to the quenching of electroluminescence plays a crucial role and is little understood. Because in situ studies of the ${\mathrm{Alq}}_{3}$ layer, with the probing of thin organic film by, for example, x-ray diffraction, are very difficult, if not impossible, Monte Carlo simulation is therefore conducted. The molecular motion of ${\mathrm{Alq}}_{3}$ is simulated by two-dimensional triangles which interacted with a square-well potential in an isothermal-isobaric ensemble. Simulated results show the structural relaxation of ${\mathrm{Alq}}_{3}$ from amorphous to crystalline upon thermal annealing. To impede this ordering process, quenched impurities of various shapes were added to the system. It is found that impurities of circular shape and of low aspect ratio have relatively the highest disordering effect. This is in good agreement with the experimental results. In addition, the preferred geometry of the ${\mathrm{Alq}}_{3}$ system was also examined.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.000 |
| 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 teacher head, 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".