Selective Area HVPE of InGaAs Nanowires with Widely Tunable Composition on Si Substrates for Nanoscale Device Integration on Si Platforms
Bibliographic record
Abstract
Nanowires (NWs) are promising for the integration of III–V compound-based electrical and optical devices on Si. Selective area growth (SAG) of In x Ga 1– x As NWs with compositions x varying from 0.34 to 0.90 is achieved. NWs are grown on patterned Si(111) substrates by hydride vapor phase epitaxy (HVPE) at temperatures around 690 °C. The composition is measured using EDX profiles along their lengths and found to be quite homogeneous. Theoretical analysis revealed that the NW composition is kinetically controlled and well-fit by the one-parametric Langmuir–McLean formula, with no thermodynamic factors influencing the compositional trend. This study highlights the capability of catalyst-free HVPE SAG to grow highly uniform InGaAs NW arrays with a widely tunable composition on Si substrates.
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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 | 0.000 |
| 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".