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Title: | An Investigation of Well-Characterized Small Gold Clusters by Photoelectron Spectroscopy, Tunneling Spectroscopy, and Cognate Techniques |
Authors: | Rao, C N R Vijayakrishnan, V Aiyer, Hemantkumar N Kulkarni, G U Subbanna, G N |
Keywords: | Transition-Metal Clusters Final-State Photoemission Surface Oxide |
Issue Date: | 28-Oct-1993 |
Publisher: | American Chemical Society |
Citation: | Journal Of Physical Chemistry 97(43), 11157-11160 (1993) |
Abstract: | After microscopic characterization of the size distributions of gold clusters, deposited on carbon substrates by vacuum evaporation or by soft landing, Au(4f) binding energy of the clusters has been measured as a function of the mean cluster size. Similar measurements have been carried out on Au clusters prepared from sols by chemical means and high-nuclearity cluster compounds. In general, small clusters with a mean diameter of less than or similar to 2 nm show significantly larger binding energies than the bulk metal value, due to the onset of nonmetallicity. Nonmetallicity manifests itself in terms of a tunneling conductance gap only in clusters of diameter less than or similar to 1 nm containing 40 atoms or fewer. |
Description: | Restricted Access |
URI: | https://libjncir.jncasr.ac.in/xmlui/10572/725 |
Other Identifiers: | 0022-3654 |
Appears in Collections: | Research Papers (Prof. C.N.R. Rao) |
Files in This Item:
File | Description | Size | Format | |
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sl.no9.1993.Journal Of Physical Chemistry 97(43 ), 11157-11160 ().pdf Restricted Access | 1.53 MB | Adobe PDF | View/Open Request a copy |
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