Monitoring of Energy Conservation and Losses in Molecular Junctions through Characterization of Light Emission
Why this work is in the frame
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Bibliographic record
Abstract
Emission of visible light from large area molecular junctions provides a direct measure of the energy of carriers when they encounter a conducting contact and stimulate photon emission. For carbon/molecule/carbon molecular junctions containing aromatic molecular layers with thicknesses less than 5 nm, transport is elastic, and the maximum emitted photon energy (i.e., “cut‐off” energy, hv co ) is equal to eV app , where V app is the bias across the molecular junction. hv co increases monotonically with V app , is symmetric with polarity, but is weakly dependent on the nature of the contact material. Light emission from molecular junctions containing oligomeric films of anthraquinone, nitroazobenzene, naphthalene diimide, and bis‐thienyl benzene with thicknesses of 4.5–59 nm is observed as a function of bias. For layers thicker than 5–7 nm, hv co < eV app , indicating loss of energy and therefore inelastic transport. The energy loss depends strongly on molecular structure and is linear with molecular layer thickness. When the molecular layer thickness exceeds 5–7 nm, the results provide strong evidence for a transition from elastic to inelastic transport and for stepwise, activationless transport up to 65 nm molecular layer thicknesses. Such information proves valuable for determining transport mechanisms and ultimately designing molecular junctions with desirable electronic properties.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it