YAG:Ce phosphor for converting blue light into yellow light with an increased red component
Bibliographic record
Abstract
In this work, a YAG:Ce³⁺ phosphor for the conversion of blue light into yellow light with an increased red component was synthesized. The red component was enhanced by adding Cr-doped Al₂O₃ with strong red emission, synthesized by the glycine-nitrate method, to a commercial YAG:Ce phosphor powder. It was found that the optimal Cr concentration in Al₂O₃ was 0.3 mol%. After sintering at 1600 °C, dense YAG:Ce samples containing Cr-doped Al₂O₃ in amounts ranging from 1 to 10 wt% were obtained. Microstructural analysis revealed that Cr-doped Al₂O₃ grains were distributed within the YAG:Ce matrix. It was demonstrated that this composite phosphor converts blue light into yellow light with an enhanced red component. The highest red contribution was measured in YAG:Ce samples containing 5 wt% Cr-doped Al₂O₃. The increase in the red component was accompanied by a decrease in the intensity of the yellow emission due to electron transfer from CE to Cr as well as absorption of blue light by the Cr-doped Al₂O₃.
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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 | 0.004 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.003 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.005 | 0.007 |
| Open science | 0.007 | 0.003 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 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".