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Title: Effect of size on the Coulomb staircase phenomenon in metal nanocrystals
Authors: Thomas, P John
Kulkarni, G U
Rao, C N R
Keywords: Tunnel-Junctions
Issue Date: 21-Apr-2000
Publisher: Elsevier Science BV
Citation: Chemical Physics Letters 321(1-2), 163-168 (2000)
Abstract: The Coulomb staircase in polymer-covered Pd and Au nanocrystals of varying diameters in the 1.7-6.4 nm has been investigated by employing tunneling conductance measurements. Charging up to several electrons is observed at room temperature in the I-V data. Small nanocrystals show charging steps exceeding 200 mV while the larger ones exhibit smaller steps. Significantly, the charging energies follow a scaling law of the form, U = A + B/d, where d is the diameter of the nanocrystal. Furthermore, the line widths in the derivative spectra also vary inversely with the diameter. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
Description: Restricted Access
Other Identifiers: 0009-2614
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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