Journal
CHEMICAL PHYSICS
Volume 364, Issue 1-3, Pages 14-18Publisher
ELSEVIER
DOI: 10.1016/j.chemphys.2009.08.007
Keywords
Small-angle X-ray scattering; Nanorod; Distance distribution function; Theoretical scattering function; End cap
Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan [16710082]
- Grants-in-Aid for Scientific Research [16710082] Funding Source: KAKEN
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Small-angle X-ray scattering (SAXS) experiments were carried out on gold nanorods generated by a seed-mediated growth method. Previous transmission electron microscopy observations suggest that the main components of nanoparticles are rod-shaped nanoparticles, but they are contaminated by other different-shaped, large-volume particles. By performing profile fitting of theoretical and experimental scattering curves, we determined and then removed from the obtained SAXS profile, the contribution of the contaminating particles. From the revised SAXS profile, we calculated the distance distribution function by Fourier transform and precisely determined the structural parameters of the nanorods and the structure of the nanorod end caps. (C) 2009 Elsevier B.V. All rights reserved.
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