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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(10) [October 2006] >
| Title: | Combined SANS and SAXS in studies of nanoparticles with core-shell structure |
| Authors: | Goyal, P S
Aswal, V K |
| Keywords: | Neutron scattering
Nanoparticles
Core-shell structure
Neutron diffraction |
| Issue Date: | Oct-2006 |
| Publisher: | CSIR |
| IPC Code: | H01F41/30 |
| Abstract: | Small
angle neutron scattering (SANS) and small angle X-ray scattering (SAXS) are
essentially diffraction experiments involving small (~1°) scattering angles. Unlike conventional diffraction experiments
(XRD or neutron diffraction) where one examines the specimen with an atomic
resolution (~0.2 nm), SANS/SAXS are used to investigate structures on a length
scale of ~10 nm. Hence, SANS / SAXS are ideal techniques for studying the sizes
and shapes of nanoparticles. At times, because of differences in contrast for
neutrons and X-rays, a combined SANS and SAXS study provides information about
the core and the shell structure of nanoparticles. This paper gives an
introduction to the techniques of SANS and SAXS and their applications in material
science. Recent results on study of core-shell structure of a micelle
(nanoparticle of organic material) are presented. |
| Page(s): | 724-728 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.44(10) [October 2006]
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