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Proceedings Paper

Feasibility of sizing metallic nanoparticles in concentrated suspensions from effective optical properties
Author(s): G. Morales-Luna; R. Márquez-Islas; O. Vázquez-Estrada; H. Contreras-Tello; A. García-Valenzuela
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Paper Abstract

We explore using measurements of the effective refractive index of a metallic nanofluid to estimate the size of the particles in it. We assume the nanofluid consists of spherical metallic nanoparticles suspended in a transparent base liquid and discuss a way of measuring the real and imaginary parts of the effective refractive index for concentrated nanofluids to about 1% in particles’ volume concentration. Specifically, we consider the case of copper nanoparticles suspended in water. We propose an unambiguous effective optical parameter as a candidate to evidence the particle size, potentially in real time. Limitations due to dependent scattering effects in concentrated nanofluids are briefly stated.

Paper Details

Date Published: 20 August 2015
PDF: 6 pages
Proc. SPIE 9556, Nanoengineering: Fabrication, Properties, Optics, and Devices XII, 95561I (20 August 2015); doi: 10.1117/12.2187032
Show Author Affiliations
G. Morales-Luna, Univ. Nacional Autónoma de Mexico (Mexico)
R. Márquez-Islas, Univ. Nacional Autónoma de Mexico (Mexico)
O. Vázquez-Estrada, Univ. Nacional Autónoma de Mexico (Mexico)
H. Contreras-Tello, Univ. Nacional Autónoma de México (Mexico)
A. García-Valenzuela, Univ. Nacional Autónoma de México (Mexico)


Published in SPIE Proceedings Vol. 9556:
Nanoengineering: Fabrication, Properties, Optics, and Devices XII
Eva M. Campo; Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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