Evaluation of GaN and In<sub>0.2</sub>Ga<sub>0.8</sub>N Semiconductors as Potentiometric Anion Selective Electrodes
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Bibliographic record
Abstract
Abstract The response of potentiometric anion selective electrodes consisting of undoped GaN or In 0.2 Ga 0.8 N films grown on Al 2 O 3 (sapphire) was measured in electrolyte solutions of F − , NO 3 − , Cl − , SCN − , ClO 4 − 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 In 0.2 Ga 0.8 N electrode. The drift of the GaN electrode reached 1.57 mV/day in KNO 3 solutions, whereas the drift of the In 0.2 Ga 0.8 N 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 In 0.2 Ga 0.8 N electrodes remained chemically stable and mechanically intact under open circuit conditions even after prolonged use.
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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 | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.005 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 it