Performance of organic thin-film transistors
Bibliographic record
Abstract
An investigation of the performance of organic and polymeric thin-film transistors (OTFTs) made of several organic semiconducting and insulating materials in the last two decades is presented, in an attempt to capture the state-of-the-art experimental values for effective mobility, threshold voltage, on/off ratio, and subthreshold slope in OTFTs made of different materials by different fabrication approaches. The analysis of published data demonstrates that the effective mobility decreases when the product of the semiconducting film thickness (tO) and gate capacitance per unit area (CI) increases. The decrease is given by a power-law function with parameters for several organic semiconductors, and examples are provided on how the deduced trend can be used in the practical design of organic circuits. The second observation is that the polarity of the OTFTs’ threshold voltage VT is random, but the spread in magnitudes of ∣VT∣ decreases, when CI increases. This trend, together with the third observation that the subthreshold slope tends to decrease when CI increases, is weak and no strong correlation between subthreshold slope and on/off ratio in the published data was found.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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".