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Record W2027369650 · doi:10.1021/cm011548n

Ag Nanostructures on a Silicon Nanowire Template:  Preparation and X-ray Absorption Fine Structure Study at the Si K-edge and Ag L<sub>3,2</sub>-edge

2002· article· en· W2027369650 on OpenAlexaff
X. H. Sun, Ramaswami Sammynaiken, S. J. Naftel, Yujie Tang, Peng Zhang, PS Kim, T. K. Sham, Xiayang Fan, Yuefei Zhang, Chun‐Sing Lee, S.T. Lee, N. B. Wong, Yongfeng Hu, K. H. Tan

Bibliographic record

VenueChemistry of Materials · 2002
Typearticle
Languageen
FieldMaterials Science
TopicSilicon Nanostructures and Photoluminescence
Canadian institutionsWestern University
Fundersnot available
KeywordsSiliconMaterials scienceX-ray absorption fine structureNanowireNanostructureEvaporationPorous siliconAqueous solutionNanotechnologyAbsorption (acoustics)Layer (electronics)Absorption spectroscopyChemical engineeringSpectroscopyOptoelectronicsOpticsChemistryComposite materialOrganic chemistry

Abstract

fetched live from OpenAlex

We use X-ray absorption fine structure (XAFS) spectroscopy at the Si K-edge and the Ag L 3,2 -edge to monitor the surface chemistry of silicon nanowires. We found that Si nanowires prepared by laser ablation and thermal evaporation are coated with a thick layer of oxides that can be readily removed with a HF solution. HF-refreshed silicon nanowires become a moderate reducing agent and can be used as a nanostructure template upon which silver nanoaggregate deposited reductively from a Ag + aqueous solution, reoxidizing the surface in the process. These results are compared with those of porous silicon.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.016
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.011
GPT teacher head0.231
Teacher spread0.219 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations20
Published2002
Admission routes1
Has abstractyes

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