Bismuth-Assisted CdSe and CdTe Nanowire Growth on Plastics
Bibliographic record
Abstract
A modified chemical vapor deposition process was used to synthesize long (>10 μm), 20−60 nm diameter CdSe and CdTe nanowires (NWs) at low temperatures on plastic. The approach applies synthetic strategies developed during the growth of solution-based semiconductor NWs. Namely, a thin Bi film is employed to induce NW growth at temperatures as low as ∼300 °C on polyimide. This plastic is flexible, semitransparent, and possesses excellent chemical stability. Resulting wires have subsequently been characterized using various techniques, including scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. NW formation appears to follow a vapor−liquid−solid (VLS) mechanism with Bi nanoparticles inducing directional growth. The length, width, and overall density of the wires can be modified by varying the growth temperature, Bi film thickness, as well as the introduced precursor metal:chalcogen stoichiometry. Additional studies were conducted to grow wires on other substrates such as silicon, glass, indium−tin−oxide coated glass coverslips, and Teflon. This study highlights the ability to synthesize II−VI NWs at low temperatures on various materials including plastics and raises the possibility of eventually developing conformal NW solar cells.
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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) | 0.000 | 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 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".