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Record W2069548618 · doi:10.1021/ja0711720

Liquid-Crystal Gel-Dispersed Quantum Dots:  Reversible Modulation of Photoluminescence Intensity Using an Electric Field

2007· article· en· W2069548618 on OpenAlex

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

VenueJournal of the American Chemical Society · 2007
Typearticle
Languageen
FieldMaterials Science
TopicLiquid Crystal Research Advancements
Canadian institutionsUniversité de Sherbrooke
Fundersnot available
KeywordsQuantum dotPhotoluminescenceChemistryLiquid crystalExcitationElectric fieldIntensity (physics)OptoelectronicsFluorescenceCrystal (programming language)OpticsMaterials sciencePhysics

Abstract

fetched live from OpenAlex

A general approach of using the electric field-controllable liquid-crystal orientation to modulate the photoluminescence intensity of quantum dots is presented. Liquid-crystal gel-dispersed quantum dots of CdSe/ZnS were prepared using a cholesteric liquid crystal containing either a self-assembled physical network or a covalently crosslinked polymer. The reversible change in liquid-crystal orientational state in response to an applied voltage changes the internal scattering of the excitation light and thus the excitation of the dispersed quantum dots. This leads to an electrically switchable fluorescence emission of CdSe/ZnS in two different ways: high intensity at field-off and low intensity at field-on state, and vice versa.

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)0.001
metaresearch head score (Gemma)0.001
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 score0.004
Threshold uncertainty score0.377

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
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 head0.025
GPT teacher head0.312
Teacher spread0.287 · 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