Observation of vacancy defects at silicon grain boundaries formed via suppressed solid phase epitaxy
Bibliographic record
Abstract
Polycrystalline silicon has been formed via the complete amorphization and subsequent thermal re-crystallization of the overlayer of silicon-on-insulator substrates. The formation of the polycrystalline phase was confirmed via cross-sectional transmission electron microscopy, with the samples also being characterized by variable energy positron annihilation spectroscopy (VEPAS). By comparing the response of the VEPAS spectra for samples in which polycrystal formation was confirmed with samples in which the silicon overlayer was regrown as a single crystal, it was possible to observe the existence of vacancy-type defects at the film grain boundaries. For a sample with an overlayer of 1500 nm thickness a saturation of the measured Doppler-broadened S-parameter of 1.025 was estimated for the polycrystalline sample. This leads us to conclude that the majority of the vacancy defects at the grain boundaries are close in structure to that of the silicon monovacancy.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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".