Nano Archive

An electrochemically assisted mechanically controllable break junction approach for single molecule junction conductance measurements

Yang, Yang and Chen, Zhaobin and Liu, Junyang and Lu, Miao and Yang, Dezhi and Yang, Fangzu and Tian, Zhongqun (2011) An electrochemically assisted mechanically controllable break junction approach for single molecule junction conductance measurements. Nano Research, 4 (12). pp. 1199-1207. ISSN 1998-0124 (Print) 1998-0000 (Online)

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Official URL: http://www.springerlink.com/content/1460460746753m...

Abstract

We report an electrochemically assisted mechanically controllable break junction (EC-MCBJ) approach to investigating single molecule conductance. Electrode pairs connected with a gold nanobridge were fabricated by electrochemical deposition and then mounted on a homebuilt MCBJ platform. A large number of Au- molecule-Au junctions were produced sequentially by repeated breaking and reconnecting of the gold nanobridge. In order to measure their single molecule conductance, statistical conductance histograms were generated for benzene-1,4-dithiol (BDT) and 4,4′-bipyridine (BPY). The values extracted from these histograms were found to be in the same range as values previously reported in the literature. Our method is distinct from the ones used to acquire these previously reported literature values, however, in that it is faster, simpler, more cost-effective, and changing the electrode material is more convenient.

Item Type:Article
Subjects:Material Science > Functional and hybrid materials
Analytical Science > Nanotechnology for sensing and actuating
ID Code:11574
Deposited By:M T V
Deposited On:05 Jan 2012 11:25
Last Modified:05 Jan 2012 11:25

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