The DOI matches its Crossref record.
Transition from Tunneling to Hopping in Single Molecular Junctions by Measuring Length and Temperature Dependence
Abstract
The charge transport characteristics of a family of long conjugated molecular wires have been studied using the scanning tunneling microscope break junction technique. The family consists of four wires ranging from 3.1 to 9.4 nm in length. The two shortest wires show highly length dependent and temperature invariant conductance behavior, whereas the longer two wires show weakly length dependent and temperature variant behavior. This trend is consistent with a model whereby conduction occurs by two different mechanisms in the family of wires: by a coherent tunneling mechanism in the shorter two and by an incoherent charge hopping process in the longer wires. The temperature dependence of the two conduction mechanisms gives rise to a phenomenon whereby at elevated temperatures longer molecules that conduct via charge hopping can yield a higher conductance than shorter wires that conduct via tunneling. The evolution of molecular junctions as the tip retracts has been studied and explained in context of the characteristics of individual transient current decay curves.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Metzger, R. M. (2015) · Chemical Reviews · doi:10.1021/cr500459d · Cited by 380
In situ formation of highly conducting covalent Au–C contacts for single-molecule junctions
Cheng, Z.-L., Skouta, R., Vazquez, H., Widawsky, J. R., Schneebeli, S., Chen, W., Hybertsen, M. S., Breslow, R., & Venkataraman, L. (2011) · Nature Nanotechnology · doi:10.1038/nnano.2011.66 · Cited by 286
Single-molecule quantum tunnelling sensors
Yi, L., Yang, Y., Zeng, B.-F., Liu, X., Edel, J. B., Ivanov, A. P., & Tang, L. (2026) · Chemical Society Reviews · doi:10.1039/d4cs00375f · Cited by 12
Metadata
- Authors
- Hines, T., Diez-Perez, I., Hihath, J., Liu, H., Wang, Z.-S., Zhao, J., Zhou, G., Müllen, K., & Tao, N.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-07-29
- Volume
- 132
- Issue
- 33
- Pages
- 11658-11664
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1993073327
- Cited by
- 245
- References
- 0
- FWCI
- 13.71
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Transition from Tunneling to Hopping in Single Molecular Junctions by Measuring Length and Temperature Dependence. https://app.cochat.ai/papers/10.1021/ja1040946
- The paper
- Hines, T., Diez-Perez, I., Hihath, J., Liu, H., Wang, Z.-S., Zhao, J., Zhou, G., Müllen, K., & Tao, N. (2010). Transition from Tunneling to Hopping in Single Molecular Junctions by Measuring Length and Temperature Dependence. Journal of the American Chemical Society. https://doi.org/10.1021/ja1040946
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
