Electrically modulated near-field energy transfer between quantum dots and perovskite nanocrystals
Why this work is in the frame
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Bibliographic record
Abstract
Electrically controlling resonance energy transfer of optical emitters provides a novel mechanism to switch nanoscale light sources on and off individually for optoelectronic applications. Cesium lead halide nanocrystals have emerged as a candidate for optoelectronic applications, seamlessly blending the favorable advantages of perovskites and quantum dots. Here, we demonstrate nonradiative energy transfer between CsPbBr 3 nanocrystals and colloidal quantum dots in a heterostructure device. We fabricate devices with semiconducting, chemically synthesised cesium lead bromide (CsPbBr 3 ) perovskite nanocrystals (PerNCs) as an electrostatically gated donor and core–shell quantum dots (QDs) as an acceptor. With the help of a bottom-gate electrode and hafnium oxide (HfO 2 ) dielectric layer, the Förster resonance energy transfer (FRET) efficiency can be modulated. Thicknesses of the dielectric, donor, and acceptor layers were fine-tuned and the optimized device configuration exhibits up to 80% modulation of photoluminescence intensity, making it suitable for potential applications in optoelectronic devices and energy conversion.
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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 | 0.001 |
| 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