Sharma, Jadab ; Vivek, J. P. ; Vijayamohanan, Kunjukrishna P. ; Singh, Poonam ; Dharmadhikari, C. V. (2006) Directed organization of gold nanoclusters on silver nanowires: a step forward in heterostructure assembly Applied Physics Letters, 88 (19). 193103_1-193103_3. ISSN 0003-6951
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Official URL: http://apl.aip.org/resource/1/applab/v88/i19/p1931...
Related URL: http://dx.doi.org/10.1063/1.2200284
Abstract
We investigate the directed assembly of tridecylamine protected gold nanoclusters of 4-5 nm size on functionalized silver nanowires of 55-60 nm diameter and the electron transfer behavior of this integrated structure using transmission electron microscopy, non-contact atomic force microscopy, and scanning tunneling microscopy/spectroscopy. Linear I-V for bare silver nanowire suggests metallic behavior but high tunnel resistance indicates presence of insulating layer on the surface. Identical I-Vs obtained for isolated gold nanoparticle and heterostructure suggests that electron transport across nanowires in the latter is governed by gold nanoparticles in contrast to expected ballistic or diffusive transport along their length.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Gold; Silver; Metal Clusters; Nanowires; Nanotechnology; Transmission Electron Microscopy; Atomic Force Microscopy; Scanning Tunnelling Microscopy; Scanning Tunnelling Spectroscopy; Electrical Resistivity |
| ID Code: | 68924 |
| Deposited On: | 08 Nov 2011 04:40 |
| Last Modified: | 08 Nov 2011 04:40 |
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