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Record W2093309829 · doi:10.1021/jp803887g

Characterization of the Interface of Gold and Silver Nanostructures on InP and GaAs Synthesized via Galvanic Displacement

2008· article· en· W2093309829 on OpenAlex
Sayed Y. Sayed, Brian Daly, Jillian M. Buriak

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueThe Journal of Physical Chemistry C · 2008
Typearticle
Languageen
FieldEngineering
TopicSemiconductor materials and devices
Canadian institutionsNational Institute for NanotechnologyUniversity of Alberta
Fundersnot available
KeywordsIntermetallicMaterials scienceSemiconductorX-ray photoelectron spectroscopyAuger electron spectroscopyGalvanic cellIonic bondingMetalMetallurgyOptoelectronicsChemical engineeringChemistryAlloy

Abstract

fetched live from OpenAlex

This work describes an investigation of the nature of the interface formed between the metals gold and silver, and the technologically relevant semiconductor substrates, InP and GaAs, produced via room temperature galvanic displacement. Immersion of these III−V semiconducting materials in a solution of the ionic gold and silver precursors results in deposition of firmly bound metal on the surface with varying morphologies, depending upon the conditions. Depth profile XPS indicates the presence of sandwiched intermetallic layers in the case of gold on GaAs and InP, but little evidence of a corresponding intermetallic with silver was observed. Cross section scanning Auger electron line profile spectra suggest little diffusion of the metals into the semiconductor lattice. It appears, therefore, that in the case of gold on InP and GaAs, dissociative diffusion of the semiconductor into the metal is favored, leading to a structure in which the intermetallic is located at an abrupt semiconductor-intermetallic boundary. The compositions of the gold intermetallics for GaAs and InP are most likely γ-Au 9 Ga 4 and AuGa for the first and AuIn and AuIn 2 for the second, respectively.

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.

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 categoriesnone
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 score0.006
Threshold uncertainty score0.158

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)0.0000.000

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 head0.006
GPT teacher head0.213
Teacher spread0.207 · 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