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The Electronic and Optical Properties of Dendrimercapped CdS Quantum Dots A UVvis and Xray spectroscopy study

2005· article· en· W1537446755 on OpenAlexafffund
Peng Zhang, T. K. Sham

Bibliographic record

VenuePhysica Scripta · 2005
Typearticle
Languageen
FieldMaterials Science
TopicQuantum Dots Synthesis And Properties
Canadian institutionsWestern University
FundersNatural Sciences and Engineering Research Council of CanadaUniversity of Wisconsin-MadisonNational Science Foundation
KeywordsXANESPhotoluminescenceMaterials scienceQuantum dotSpectroscopyAbsorption (acoustics)Excited stateAbsorption spectroscopyLuminescenceAbsorption edgeElectronic structureOptoelectronicsPhotochemistryOpticsChemistryAtomic physicsBand gapPhysicsComputational chemistry

Abstract

fetched live from OpenAlex

The electronic and optical properties of a series of PAMAM-dendrimer capped CdS quantum dots (QDs) have been investigated with UV-vis absorption (UV-abs), photoluminescence (PL), x-ray absorption near-edge structure (XANES) and x-ray excited optical luminescence (XEOL) techniques. The size-dependent electronic behavior of the QDs was observed in both the UV-abs and XANES (S K-edge) spectroscopy. Findings from the PL and XEOL studies provide complementary information to the UV- and x-ray absorption results and shed further light on the stability of the CdS QDs upon aging.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.001
Threshold uncertainty score0.004

Distilled classifier scores by category (both heads)

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 head0.019
GPT teacher head0.240
Teacher spread0.221 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
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

Citations3
Published2005
Admission routes2
Has abstractyes

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