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Unexpected current–voltage characteristics of mechanically modulated atomic contacts with the presence of molecular junctions in an electrochemically assisted–MCBJ
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yang, Yang Liu, Junyang Feng, Shi Tian, Jing-Hua Zheng, Jueting Schoellhorn, Bernd Amatore, Christian Chen, Zhong-Ning Tian, Zhong-Qun |
| Copyright Year | 2015 |
| Abstract | In this article, we report on the characterization of various molecular junctions’ current–voltage characteristics (I–V curves) evolution under mechanical modulations, by employing a novel electrochemically assisted-mechanically controllable break junction (EC-MCBJ) method. For 1,4-benzenedithiol, the I–V curves measured at constant electrode pair separation show excellent reproducibility, indicating the feasibility of our EC-MCBJ method for fabricating molecular junctions. For ferrocene-bisvinylphenylmethyl dithiol (Fc-VPM), an anomalous type of I–V curve was observed by the particular control over the stepping motor. This phenomenon is rationalized assuming a model of atomic contact evolution with the presence of molecular junctions. To test this hypothesized model, a molecule with a longer length, 1,3-butadiyne-linked dinuclear ruthenium(II) complex (Ru-1), was implemented, and the I–V curve evolution was investigated under similar circumstances. Compared with Fc-VPM, the observed I–V curves show close analogy and minor differences, and both of them fit the hypothesized model well. |
| Starting Page | 560 |
| Ending Page | 570 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s12274-015-0937-1 |
| Volume Number | 9 |
| Alternate Webpage(s) | http://www.thenanoresearch.com/upload/justPDF/0937.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/s12274-015-0937-1 |
| Journal | Nano Research |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
