Excimer laser manipulation and pattering of gold nanoparticles on the SiO2/Si surface
Bibliographic record
Abstract
Au nanoparticles were deposited onto SiO2/Si by evaporation, after which x-ray photoelectron spectroscopy (XPS) indicated some interfacial interaction between the Au and the Si. The sample was then processed by KrF pulsed excimer laser radiation (248 nm) in air, at a fluence of ∼20 mJ/cm2. Following this laser irradiation, XPS indicated the loss of substrate/nanoparticle interaction, resulting in the loss of cluster adhesion to the substrate and the formation of larger, isolated, spherical Au particles through rapid cluster coalescence. UV-visible spectral measurements indicated the absence of a surface plasmon resonance peak before irradiation, due to the small nanoparticle size (<3 nm); however, such a peak appeared at ∼550 nm after irradiation, when the particle size increased to ∼5.5 nm. Using 200-mesh transmission electron microscope grids as irradiation masks, we obtained Au nanoparticles in the unpatterned areas after irradiation. Such Au nanoparticle patterning may be used in biomolecular detector-based plasmon image-type sensors.
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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) | 0.000 | 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".