High-efficiency, air stable graphene/Si micro-hole array Schottky junction solar cells
Why this work is in the frame
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Bibliographic record
Abstract
Graphene/Si hole array (SiHA) Schottky junctions show great promise as high-efficiency, cost-effective solar cells. However, their applications are still limited by the severe surface recombination of the nano-hole SiHA and inferior device stability arising from volatile oxidant doping. Here, we demonstrate the construction of high-efficiency graphene/SiHA devices with enhanced device performance and stability. The micro-hole SiHA fabricated by photolithography and reaction ion etching (RIE) possesses a smooth surface, thus ensuring a low surface recombination velocity. Also, the light harvesting of the micro-hole SiHA could be readily tuned by adjusting the hole depth. Introduction of the micro-hole SiHA, along with the use of AuCl3 for graphene doping, gives rise to a high power conversion efficiency (PCE) of 10.40% for the graphene/SiHA devices. Additionally, the device stability is substantially improved and shows a relatively low degradation ratio after storing in air for 3 months. It is expected that the graphene/SiHA devices will have important applications in new-generation Si solar cells.
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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 | 0.000 | 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 it