Quasi-2D Perovskite Luminescent Solar Concentrators Enable Large Field-of-View and High-Speed Visible Light Communication
Bibliographic record
Abstract
Luminescent solar concentrators (LSCs) based on high photoluminescence quantum yield (PLQY) quasi-2D perovskites demonstrate superior edge light collection capability, which breaks the étendue limit and achieves signal reception in visible light communication (VLC). Herein, 2,7-bis(diphenylphosphoryl)-9,9-spirobifluorene (SPPO13) is introduced into the Q-2D RP-phase perovskite (BA 2 Cs 4 Pb 5 Br 16, < n > = 5), realizing dual effects of defect passivation and small n value phase suppression. The emission peak of the optimized film is at 518 nm with a maximum PLQY of 99.49%, and it shows excellent air storage and UV stability. The Q-2D perovskite LSCs realize an external optical efficiency of 4.3% under a geometric factor G of 3.75 and are applied to VLC systems for the first time. As a result, the VLC systems achieve an FoV exceeding ±30° and a bandwidth of 165 MHz (−20 dB), enabling a light communication rate of 432 Mbps. This work expands the interdisciplinary application of Q-2D perovskite LSCs in VLC systems, liberating VLC receivers from complex active pointing and tracking systems.
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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) | 0.002 | 0.001 |
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".