Low temperature p+ nc-Si:H window layers for large area thin-film solar cells
Bibliographic record
Abstract
Hydrogenated nanocrystalline silicon (nc-Si:H) has attracted attention recently over amorphous silicon (a-Si:H) for use in thin-film solar cell applications primarily due to its higher stability and light absorbing capacity. In addition, there is increasing interest in device fabrication on low-cost, light weight and flexible substrates where optimizing deposition conditions of nc-Si:H thin films at low substrate temperatures (< 200 °C) poses challenges. In such solar cells, the thin boron-doped (p+) window layer significantly determines crystalline growth of the overlying intrinsic absorber layer, quality of which eventually governs device performance. In this research, material properties of thin p+ nc-Si:H films (50 – 300 nm) were investigated. Samples were deposited using plasma enhanced chemical vapor deposition (PECVD) at low temperatures (75 or 150 °C) with various RF power and/or pressure conditions. Results from characterization experiments and feasibility of incorporating such low-temperature thin p+ nc-Si:H films as solar cell window layers are discussed.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.002 | 0.002 |
| 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 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".