R. DIVAN, Q. MA, D.
C. MANCINI, D. T. KEANE
Controlled X-Ray Induced Gold Nanoparticles Deposition
Abstract. This paper outlines new approaches for utilizing X-rays for
gold nanoparticles deposition by performing Surface Photochemistry Induced by
X-ray Irradiation (SPIXI). High-energy synchrotron radiation was used to induce
the deposition of gold nanoparticles from a gold-salt solution onto different
surfaces. By controlling the deposition parameters (dose, solution, surfactants,
and stabilizer polymer concentrations), the distribution and average size of the
nanoparticles can be influenced. The distribution of the deposited particle
heights and diameters at low doses suggests there is a mechanism of growth of
the particles after nucleation on the surface.
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