Electrical Transport of Single- and Double-Walled Carbon Nanotubes Functionalized with Monovalent Phenyl Groups
Bibliographic record
Abstract
We present a comprehensive study on the effect of monovalent functionalization on the electrical properties of carbon nanotubes, and discuss new strategies that combine extensive functionalization with good electrical conductivity. Many individual single- and double-walled carbon nanotubes (SWNTs and DWNTs) were characterized before and after functionalization with 4-bromophenyl grafts, and after defunctionalization by thermal annealing. Functionalization resulted in a reduction of the ON-state current by an order of magnitude or more in both metallic and semiconducting SWNTs. The OFF-state leak current increased by up to three orders of magnitude in semiconducting SWNTs. Graft bonding was reversible with a 770 K vacuum anneal, although some residual damage was left on the nanotube surface. Functionalization of DWNTs affected the outer wall similarly as for SWNTs, while the inner wall was left in pristine state. Functionalized-DWNTs devices can be operated through the inner wall with electrical performance as good as pristine SWNTs.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.001 | 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".