Computational modeling of graphene-ethyl cellulose printed ink: a reactive molecular dynamic study
Bibliographic record
Abstract
Recent work on printed graphene ink has shown the importance of ethyl cellulose (EC) as a stabilizing polymer in ink formulation and a source of decomposed aromatic species that increase the conductivity of the graphene film. In this work, a reactive molecular dynamic simulation is implemented to study the decomposition of EC in the presence of a pristine graphene and a defective graphene sheet. High temperature annealing simulations revealed that the main reaction pathway of EC polymers is through the decomposition of the cellulose unit backbone into linear chain polymers containing carbon-carbon double bonds. The interactions between EC species and graphene sheets are shown to be maintained through van der Waals forces and the decomposed EC polymers were not observed to undergo chemical reactions with graphene basal-plane defect sites. The results in this paper present the first atomistic study in graphene-EC interactions and lead the way to future computational studies to optimize the electronic properties of printable graphene ink.
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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) | 0.000 | 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) | 0.000 | 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".