Electrotuneable Radical Polymers for Thin-Film Electronic Device Applications
Bibliographic record
Abstract
Polyradicals, organic polymers in which each repeating sub-unit contains a stable radical with an unpaired spin, are establishing themselves as unique alternatives to state-of-the-art conducting polymers for a variety of applications. A decisive advantage of polyradicals rests on their charge tunability and switchable transport properties. Current interests in polyradicals have been focused on batteries and resistive memory devices. Polyradical doping has remained a challenge, however, notwithstanding recent developments. Due to doping issues, single-component polyradical organic field-effect transistors (OFETs), a vital milestone in polyradical electronics, have not yet been achieved. Here, we demonstrate that an OFET architecture with source-drain contacts sandwiching the polyradical active layer led to on/off ratios >10 3 in what are the first p-type polyradical-FETs (PR-FETs) reported so far. These OFETs are based on a 6-oxoverdazyl polyradical with no impurity doping, in which hole injection occurs due to tunable charge states at the polyradical/source interface. By introducing the new concept of contact-doping, our work provides a route for translating single-component polyradical thin films into OFETs, the fundamental building blocks of organic electronics. Because of the switchable transport properties of 6-oxoverdazyl polyradicals, our PR-FETs could be used to implement the first organic mem-transistors reported to date.
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How this classification was reachedexpand
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 | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".