Ultra-thin porous silicon membranes fabricated using dry etching
Why this work is in the frame
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Bibliographic record
Abstract
The fabrication of free-standing ultra-thin porous silicon membrane structures using xenon difluoride (XeF2)-based isotropic dry etching of thin silicon wafers is reported. Using this technique, the authors demonstrate 1, 5 and 10 µm-thick porous silicon membranes that are stable and self-supporting and of relatively large surface area. By strategically choosing the etching parameters and conditions, membrane thickness and pore size can be tuned to produce porous silicon membranes with attractive features that could allow structural optimisation for different applications including biological sample filtering, sensing and drug delivery. The pore size, porosity and thickness of the various developed ultra-thin free-standing porous silicon membranes were characterised with scanning electron microscopy and optical transmittance measurements.
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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 | 0.000 | 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 | 0.001 | 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 it