Oxy Phosphorus Triazatetrabenzocorrole as a <i>p</i>-Type Organic Semiconductor in Organic Thin Film Transistors
Bibliographic record
Abstract
Triazatetrabenzocorroles (Tbc) consist of a class of molecules derived from the phthalocyanine and porphyrin families that are less commonly synthesized and utilized in applications for organic electronics. In this work, we have synthesized oxy phosphorus Tbc (POTbc) and integrated it as an organic semiconductor in organic thin film transistors (OTFTs). Both bottom-gate bottom-contact (BGBC) and bottom-gate top-contact (BGTC) OTFTs fabricated with POTbc resulted in a clear p -type performance both in air and under inert conditions. A series of solution-based silanes and thermally evaporated p -sexiphenylene were utilized as dielectric surface treatments as a means to modify the surface energy of the dielectric surface prior to depositing the POTbc thin films. Other fabrication conditions were also explored, such as deposition rate of POTbc, substrate surface temperature during deposition, and post-deposition annealing. Of these, optimized POTbc-based OTFTs were obtained from n -octadecyltrichlorosilane (ODTS)-coated substrates, with a heated deposition, which afforded an average field effect mobility of 8.18 × 10 –3 cm 2 V –1 s –1 and a threshold voltage of −23.2 V. X-ray diffraction and polarized Raman microscopy indicated a significant increase in the POTbc film crystallinity and a film morphology with a more molecular face-on configuration when deposited on ODTS-treated surfaces. These results represent the first report of OTFTs fabricated using POTbc, including structure–property relationships related to thin film optimization and device performance.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), 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".