MS-XANES Studies on the Interface Effect of Semiconductor InSb Nanoparticles Embedded in a-SiO2 Matrix
- Received Date: 2005-08-22
- Accepted Date: 2005-10-11
- Available Online: 2006-05-05
Abstract: The interface effect of semiconductor InSb nanoparticles (NPs) embedded in a-SiO2 matrix was investigated via multi-scattering XANES simulations. The results show that the white line increase and broadening to higher energies of InSb NPs embedded in a-SiO2 host matrix are mainly due to the interaction of InSb NPs and a-SiO2 matrix.It can be interpreted as both a local single-site effect on μ0(E) due to the effect of a-SiO2 matrix on Sb intra-atomic potential and the increase in 5p-hole population due to 5p-electron depletion in Sb for the InSb NPs embedded in SiO2 matrix. On the other hand, our result reveals evidently that it is not reasonable to estimate the 5p-hole counts only according to the intensity of the white line due to the interface effect of nanoparticles.





Abstract
HTML
Reference
Related
PDF












DownLoad: