Electrical and mechanical response of spin-coated PVDF-TrFE formed from MIBK and DMSO solvents under external excitations
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Bibliographic record
Abstract
Abstract Flexible polymer piezoelectric materials are of interest in electro-mechanical applications; however, the mechanical and electrical properties of these materials can be affected by their formation. In this study vibrational analysis was performed to explore the mechanical and electrical properties of piezoelectric PVDF-TrFE polymer using external excitations. Frequency response study of cantilever cantilevers was used to explore the natural mechanical response of a flexible KAPTON cantilever coated with PVDF-TrFE of different concentrations, and with different solvent formations. It is found that the mechanical response of the PVDF-TrFE coated KAPTON cantilever has reduced vibration amplitude when a combined Methyl Isobutyl Ketone (MIBK) and Dimethyl Sulfoxide (DMSO) is used, but it is not affected with only MIBK is used. When using a combined MIBK and DMSO solvent, the 1.25%w/v PVDF-TrFE material was easily mixed, and it possessed a higher piezoelectric electrical response to the MIBK solutions. The piezoelectrical coefficients were also calculated by applying a dynamic force to the cantilevers and found that q 31 of cantilever coated with the PVDF formed using the mixture of DMSO and MIBK solution is higher than that formed using MIBK.
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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 | 0.001 | 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 | 0.000 |
| 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 it