Tailoring the crystallinity of solution-processed 6,13-bis(triisopropylsilylethynyl)pentacene <i>via</i> controlled solidification
Bibliographic record
Abstract
Solution processing is one of the most important techniques for producing large-area, uniform films for printed electronics via a low-cost process. Herein, we propose a time-controlled spin-coating method to improve the crystallinity of films of the solution-processable organic small-molecule semiconductor 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-pentacene). A key factor in this process was to halt spinning before drying had begun. We used microscopic and spectroscopic analyses to systematically investigate the effect of spinning time on the evaporation rate of solvent at different spinning rates. We found that the crystallinity of the TIPS-pentacene thin films was substantially enhanced when the spinning time was limited to a few seconds, without post-treatment. We fabricated field-effect transistors using thin films deposited by this method and found that the field-effect mobility was enhanced ∼100-fold compared with that of a device fabricated using a film deposited by the conventional spin-coating method.
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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 | 0.000 |
| 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 | 0.000 |
| 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 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".