Enhanced Photonic Stability of GaAs in Aqueous Electrolyte Using Alkanethiol Self-Assembled Monolayers and Postprocessing with Ammonium Sulfide
Bibliographic record
Abstract
The photonic stability of sulfurized GaAs(001) exposed to phosphate buffered saline (PBS) solution was investigated by in situ photoluminescence (PL). Results show that samples first coated with hexadecanethiol (HDT) self-assembled monolayers (SAMs), and post-treated with ammonium sulfide, exhibited a dramatic stability increase in PBS solution. The initial PL intensity was observed to be about 3 times higher relative to samples prepared with HDT SAMs alone. X-ray photoelectron spectroscopy measurements showed the presence of increased sulfur content in accordance with the observed enhancement of PL intensity. Infrared spectroscopy measurements indicate that HDT SAMs remain well-ordered following ammonium sulfide treatment. This hybrid passivation method of GaAs is potentially attractive to the development of biosensing architectures based on PL emission from III–V quantum semiconductors.
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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".