Micrometer scale InGaN green light emitting diodes with ultra-stable operation
Bibliographic record
Abstract
We report on the demonstration of InGaN photonic nanocrystal light emitting diodes (LEDs), which operate in the green wavelength (∼548 nm). The devices are designed to operate at the Γ point of the photonic band structure and exhibit a spectral linewidth ∼4 nm, which is nearly five to ten times narrower than that of conventional InGaN quantum well LEDs in this wavelength range. Significantly, the device performance, in terms of the emission peak and spectral linewidth, is nearly invariant with injection current, suggesting the insusceptibility to quantum-confined Stark effect commonly seen in InGaN quantum wells. The external quantum efficiency is characterized by a sharp rise with increasing current and reaches a maximum at ∼5 A/cm2, which is comparable to conventional blue quantum well LEDs. A relatively small (∼30%) efficiency droop was measured at an injection current density over 200 A/cm2 at room temperature without any active cooling.
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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 | 0.000 |
| 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) | 0.001 | 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".