Room temperature air oxidation of nanostructured Si thin films with varying porosities as studied by x-ray photoelectron spectroscopy
Bibliographic record
Abstract
The room temperature air oxidation of nanostructured Si thin films, with varying porosities, has been followed by x-ray photoelectron spectroscopy (XPS), using films deposited by KrF excimer (248nm) laser ablation in He gas ambients. The overall oxidation, determined from the Si2p XPS spectrum, was shown to be amenable to time-porosity superposition, with the extracted shift factors indicating that oxidation is controlled by the permeability of air in the pores. A model has been developed to describe the room temperature air oxidation process as a function of time and porosity, in accord with the experimental findings. Efforts to determine O:Si atomic ratios from O1s:Si2p spectral ratios have revealed the effect of porosity on both the photoelectron attenuation lengths and the size-dependent photoemission intensities of the nanoparticles that compose the samples.
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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) | 0.001 | 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".