Nano Archive

Single electron charging events on Au-Ag alloy nanoclusters

Devarajan, Supriya and Sampath, S. (2006) Single electron charging events on Au-Ag alloy nanoclusters. Chemical Physics Letters, 424 (1-3). pp. 105-110. ISSN 00092614

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Abstract

Highly monodisperse, hexanethiol (HT) protected Au–Ag alloy clusters of size 1 nm–2 nm, have been prepared and characterized by UV–Vis spectroscopy, FT-IR spectroscopy and transmission electron microscopy (TEM). The alloy clusters have been utilized to follow discrete single electron charging events both in the solution phase using electrochemical techniques and in the dry state, by employing scanning tunneling microscopy (STM). Fairly well-defined charging peaks are observed for an ensemble of alloy clusters in the solution phase. A single alloy cluster on highly oriented pyrolytic graphite (HOPG) in the dry state exhibits a typical Coulomb staircase I–V curve at room temperature.

Item Type:Article
Subjects:Physical Science > Nanophysics
Material Science > Functional and hybrid materials
Material Science > Tunnelling and microscopic phenomena
Physical Science > Nano objects
Physical Science > Nanoelectronics
Material Science > Nanostructured materials
Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:4157
Deposited By:JNCASR
Deposited On:03 Apr 2009 05:28
Last Modified:03 Apr 2009 05:28

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