Balamurugan, B. and Mehta, B. R. and Shivaprasad, S. M. (2001) Surface-modified CuO layer in size-stabilized single-phase Cu2O nanoparticles. Applied Physics Letters, 79 . p. 3176. ISSN 00036951
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Abstract
Activated reactive evaporation has been used to grow copper oxide nanoparticles in the size range of 8–100 nm. X-ray diffraction spectra clearly show the presence of a single Cu2O phase. Detailed x-ray photoelectron spectroscopy studies show an increase in the ionicity of the Cu2O system with decreasing particle size. Depth profiling and finger printing of x-ray photoelectron spectra reveal that the Cu2O nanoparticles are capped with a CuO surface layer of thickness [approximate]1.6 nm. This study strongly suggests that the stabilization of the cubic Cu2O nanophase is enhanced by the formation of a CuO surface layer.
| Item Type: | Article |
|---|---|
| Subjects: | Physical Science > Nanophysics Physical Science > Nano objects Material Science > Nanochemistry Material Science > Nanostructured materials |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Physics Faculty of Engineering, Science and Mathematics > School of Chemistry |
| ID Code: | 5085 |
| Deposited By: | JNCASR |
| Deposited On: | 27 May 2009 10:14 |
| Last Modified: | 27 May 2009 10:14 |
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