Agrawal, Ved Varun ; Thomas, Reji ; Kulkarni, G. U. ; Rao, C. N. R. (2005) A single molecule switch based on two Pd nanocrystals linked by a conjugated dithiol Pramana - Journal of Physics, 65 (5). pp. 769-775. ISSN 0304-4289
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Official URL: http://www.ias.ac.in/pramana/v65/p769/fulltext.pdf
Related URL: http://dx.doi.org/10.1007/BF02704074
Abstract
Tunneling spectroscopy measurements have been carried out on a single molecule device formed by two Pd nanocrystals (dia. ~5 nm) electronically coupled by a conducting molecule, dimercaptodiphenylacetylene. The I-V data, obtained by positioning the tip over a nanocrystal electrode, exhibit negative differential resistance (NDR) on a background M-I-M characteristics. The NDR feature occurs at ~0.67 V at 300 K and shifts to a higher bias of 1.93 V at 90 K. When the tip is held in the middle region of the device, a Coulomb blockade region is observed (±~0.3 V)
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Conducting Molecule; Nanocrystals; Scanning Tunneling Microscopy; Negative Differential Resistance |
| ID Code: | 44674 |
| Deposited On: | 22 Jun 2011 14:27 |
| Last Modified: | 18 May 2016 01:15 |
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