Process Investigation of the Electrochemical Fabrication of Au Tunnel Junction with Atomic-scale

Chem. J. Chinese Universities

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Process Investigation of the Electrochemical Fabrication of Au Tunnel Junction with Atomic-scale

DONG Xiao-Dong^1,2, ZHANG Bai-Lin^1,2* , XIA Yong^1,2, ZHU Guo-Yi^1,2

1. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received:2007-11-05 Revised:1900-01-01 Online:2008-07-10 Published:2008-07-10
Contact: ZHANG Bai-Lin

Abstract

Abstract: A stable Au tunnel junction was fabricated electrochemically with the thin gold wire and the process was investigated in details. It is found that Au tunnel junction is not easy to be obtained by direct electrochemical etching of Au wire due to the mechanical stress. However, it’s easy to control the process of electrochemical deposition on a preformed Au electrode pair as well as its reverse process-etching with addition of chloiroauric acid in solution. The existence of Au ions may cause somewhat instability of the junction, while in hydrochloric acid solution, the process is under control and the Au tunnel junction is stable.

Key words: Electrochemical fabrication, Quantum wire, Tunnel junction, Molecular electron device, Au

CLC Number:

O646

TrendMD:

DONG Xiao-Dong^1,2, ZHANG Bai-Lin^1,2* , XIA Yong^1,2, ZHU Guo-Yi^1,2. Process Investigation of the Electrochemical Fabrication of Au Tunnel Junction with Atomic-scale[J]. Chem. J. Chinese Universities, doi: .

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Process Investigation of the Electrochemical Fabrication of Au Tunnel Junction with Atomic-scale

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