Alkyloxime Side Chain Enabled Polythiophene Donors for Efficient Organic Solar Cells
Bibliographic record
Abstract
Electron-withdrawing alkyloxime was, for the first time, used as a novel side chain for conjugated polymers. Two polythiophenes, PTOBT-Z with the Z-isomer alkyloxime side chains and PTOBT-Z/E with a mixture of Z- and E-isomer alkyloxime side chains, were synthesized. They possess deep highest occupied molecular orbital energies (EHOMO’s) down to −5.44 eV and wide band gaps of up to 1.94 eV, which are desirable donor characteristics for matching the non-fullerene acceptors for organic solar cells (OSCs). In addition, they exhibited excellent field effect hole mobilities of ∼10–2 cm2 V–1 s–1. OSCs using PTOBT-Z as the donor and ITIC as the acceptor achieved a high power conversion efficiency of up to 9.04%. Importantly, PTOBT-Z has a very low synthetic complexity of 23.4%. The results strongly demonstrate that alkyloxime groups are a new type of functional solubilizing side chains for developing polymer donors with both high performance and low cost.
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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 | 0.000 |
| 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 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".