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Record W2390095716

Long Lasting Behavior of Nano-sized Sr_2MgSi_2O_7:Eu~(2+),Dy~(3+) Phosphor

2005· article· it· W2390095716 on OpenAlexaff
Mao Da

Bibliographic record

Venuenot available
Typearticle
Languageit
FieldMaterials Science
TopicLuminescence Properties of Advanced Materials
Canadian institutionsCAE (Canada)
Fundersnot available
KeywordsPhosphorMaterials sciencePhotoluminescenceCalcinationAfterglowLuminescenceSol-gelAnalytical Chemistry (journal)SilicateNano-IrradiationChemical engineeringNuclear chemistryNanotechnologyCatalysisComposite materialOptoelectronicsChemistryChromatography
DOInot available

Abstract

fetched live from OpenAlex

Nano-sized Sr2MgSi2O7: Eu2+,Dy3+ phosphor with long lasting behavior was synthesized by a sol-gel method. The chemical reaction process during calcination, and the luminescent property of the obtained phosphor, were investigated in detail. The result indicated that the phosphor obtained by the sol-gel method, which showed photoluminescence and long lasting behavior, was consisted of nano-sized grains about 50nm. The sol-gel-derived phosphor gave out a visible light upon UV illumination peaking at 465nm, while the phosphor obtained by solid reaction showed two emission peaks upon UV irradiation at 404nm and 459nm respectively. The difference in emission spectra can be ascribed to the different coordinators formed within the silicate matrix. The phosphor synthesized by solid reaction exhibited a better afterglow character than the phosphor obtained by the sol-gel method, due to a higher trap concentration which was formed by a higher reaction temperature.

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)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
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 score0.041
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.002
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0170.002

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 head0.020
GPT teacher head0.267
Teacher spread0.246 · 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; both teacher heads agree on what is shown here.

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

Citations1
Published2005
Admission routes1
Has abstractyes

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