Investigation on the electronic structure of BN nanosheets synthesized via carbon-substitution reaction: the arrangement of B, N, C and O atoms
Bibliographic record
Abstract
Graphene-like BN nanosheets were synthesized via carbon-substitution reaction using graphene as a template in an attempt to produce C-doped BN. The carbon residue was removed by high-temperature oxidation in air. The role of the graphene template and oxygen with regard to the local structure of BN and its defect-related optical luminescence are investigated using X-ray absorption near-edge structure (XANES) and X-ray excited optical luminescence (XEOL). The structure and bonding of B, N, C and O in different chemical environments before and after oxidation are revealed by XANES. It is found that B and N atoms tend to form large BN domains, whereas the formation of B-C or N-C bonding is not significant. Two types of O local structures are found under different oxidation temperatures, as revealed by XANES: moderate oxidation results in O substituting N, while B2O3-like local structure is formed under higher oxidation temperature. The two types of O-related defects exhibit different luminescence properties.
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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 | 0.001 |
| 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".