MétaCan
Menu
Back to cohort
Record W1631357764 · doi:10.1117/12.453583

BaTiO 3 thin films fabricated by sol-gel process

2002· article· en· W1631357764 on OpenAlexaff
Daniel Hernández‐Cruz, Roger A. Lessard

Bibliographic record

VenueProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2002
Typearticle
Languageen
FieldMaterials Science
TopicFerroelectric and Piezoelectric Materials
Canadian institutionsUniversité Laval
Fundersnot available
KeywordsMaterials scienceX-ray photoelectron spectroscopySol-gelThin filmFerroelectricitySpin coatingAnalytical Chemistry (journal)OptoelectronicsChemical engineeringNanotechnologyDielectric

Abstract

fetched live from OpenAlex

Typical characteristics of BaTiO3 thin films, such as hysterisis behavior, spontaneous polarization below the Curie temperature, faster switching speed etc., are particularly of much attention for high capacitance integrated elements, dynamic random access memories (DRAMs), phase conjugation, holographic optical data storage, two-beam coupling and optical computing. Several techniques have been employed for the fabrication process of such ferroelectric thin films. Among other methods, Sol-Gel and MOD prove to be a powerful and inexpensive means to deposit thin films. The main advantages of these deposition techniques are good homogeneity, ability to precisely control the stoichiometry of the film, lower temperature processing, and the ability to produce high-purity materials for electronics and optics without much investment in equipment. We report the structural characterization of BaTiO3 films deposited on single crystal Si (100) and MgO (100) substrates by sol-gel process. The films were prepared by the sol-gel process and annealed at different temperatures. In this method the sol-gel polymerization is initiated by adding water to a solution of alkoxide in methanol. The chemical conditions are generally chosen in such a way that nearly complete hydrolysis occurs. A series of experiments ranging from X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), were conducted on the spin-coated films and their correspondingly annealed films at different temperatures.

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 score0.002
Threshold uncertainty score0.006

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)0.0020.001

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 head0.012
GPT teacher head0.224
Teacher spread0.211 · 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

Citations0
Published2002
Admission routes1
Has abstractyes

Explore more

Same venueProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIESame topicFerroelectric and Piezoelectric MaterialsFrench-language works237,207