Evaluation of GaN and In<sub>0.2</sub>Ga<sub>0.8</sub>N Semiconductors as Potentiometric Anion Selective Electrodes
Bibliographic record
Abstract
Abstract The response of potentiometric anion selective electrodes consisting of undoped GaN or In0.2Ga0.8N films grown on Al2O3 (sapphire) was measured in electrolyte solutions of F−, NO3−, Cl−, SCN−, ClO4− or Br− anions at concentrations ranging from 10−6 to 10−1 M. The slope of the linear regions varied between −32.8 and −51.9 mV/decade for the GaN electrode and between −31.0 and −72.0 mV/decade for the In0.2Ga0.8N electrode. The drift of the GaN electrode reached 1.57 mV/day in KNO3 solutions, whereas the drift of the In0.2Ga0.8N electrode could not be evaluated due to large drops in the slope of its linear range over time. Both electrodes were sensitive to pH variations over the pH range from 12.8 to 1.3. The GaN electrode surface could be electrochemically etched under anodic polarization; however, both GaN and In0.2Ga0.8N electrodes remained chemically stable and mechanically intact under open circuit conditions even after prolonged use.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 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 | 0.001 | 0.000 |
| Research integrity | 0.001 | 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 source (direct Gemma or distilled Codex), 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".