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Record W2150225294 · doi:10.1139/cjp-2013-0546

Characterization of mechanically synthesized AgInSe<sub>2</sub> nanostructures

2014· article· en· W2150225294 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.

venuePublished in a venue whose home country is Canada.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueCanadian Journal of Physics · 2014
Typearticle
Languageen
FieldEngineering
TopicChalcogenide Semiconductor Thin Films
Canadian institutionsnot available
FundersUniverzita Pardubice
KeywordsCrystallizationCrystalliteNucleationSolar cellTetragonal crystal systemTransmission electron microscopyBall millMaterials sciencePowder diffractionSelected area diffractionNanoparticleCrystallographyPhase (matter)NanotechnologyPhysicsOptoelectronicsComposite materialThermodynamics

Abstract

fetched live from OpenAlex

A quantum dot (QD) solar cell is an emerging field in solar cell research that uses QDs as the photovoltaic material. QDs have band gaps that are tunable across a wide range of energy levels by changing the QD size. Embedding different sized dots within the absorbing layer encourages harnessing the maximum spectrum energy. Also, other effects like a very high surface to volume ratio and quantum transport make them attractive for future devices. AgInSe 2 (AIS) nanoparticles with tetragonally distorted phase have been prepared by mechanically alloying the synthesized bulk AIS powder at room temperature in a planetary ball mill under Ar in an attempt to create QDs. Nanoparticles are formed of ∼10 nm in size. These ball-milled nanoparticles contain different shapes and the Rietveld analysis of X-ray powder diffraction data reveals their detailed structural features. High resolution transmission electron microscope images also detect the presence of the tetragonal phase in ball-milled samples. Peak broadening (full width at half maximum), the main characteristic of a decrease in size, is observed. X-ray diffraction data reveals the downscaling of crystallite from 103 to 7 nm, and the tetragonally distorted structure of the system was not disturbed by milling. Differential scanning calorimetric study also reveals the phase evolution and crystallization kinetics. Bulk samples show endo melting peak at 134 and 220 °C. The cooling–crystallization complexity of the peaks signifies that crystallization from melt was heterogeneous nucleation and crystallization from multiple types of centers. Unlike this milled samples show two crystallization effects at approximately 135 and 380 °C. Optical properties investigated to find band edges suggest that it is around 1.3 eV, which is encouraging for photovoltaic applications.

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 score0.009
Threshold uncertainty score0.562

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 head0.007
GPT teacher head0.167
Teacher spread0.160 · 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