Size-induced stability and structural transition in monodispersed indium nanoparticles

Balamurugan, B.; Kruis, F. E.; Shivaprasad, S. M.; Dmitrieva, O.; Zähres, H.
February 2005
Applied Physics Letters;2/21/2005, Vol. 86 Issue 8, p083102
Academic Journal
The present study reports the stability and the physical significance of the size-induced crystallographic structural transition in the gas-phase synthesized monodispersed indium nanoparticles. Transmission electron microscopy and x-ray photoelectron spectroscopy studies reveal that the formation of a thin oxide shell results in enhanced stability of indium nanoparticles. These results also show a size-induced structural transition from the bulk tetragonal to face-centered-cubic structure, which is attributed to an increase in the binding energy of core electrons of indium nanoparticles due to quantum confinement effects and the presence of a thin oxide shell.


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