Doped yttrium aluminum garnet (YAG, Y₃Al₅O₁₂) materials are studied for their peculiar luminescence properties.
In order to explore the properties of one of these materials in the nanometric range, Nd:YAG (Nd:Y₃Al₅O₁₂) nanoparticles have been produced by using two synthesis procedures, coprecipitation and microemulsion methods.
In the former, the Nd-YAG nanoparticles formation is performed by co-precipitation of two hydroxides, Al(OH)₃ e Y(OH)₃, in an aqueous solution containing Nd⁺² ions. The thermal treatment at 900 C of the mixed hydroxide nanoparticles, allows obtaining the final product.
In the latter, the co-precipitation happens inside the aqueous core of the reverse micelle that constituted the water/CTAB/butanol/n-heptane microemulsion. The thermal treatment at 900 C of the microemulsion containing the mixed hydroxide allows to eliminate surfactant and oil and to obtain the doped mixed oxide.
The obtained materials, of stoichiometric composition Nd_0.15Y_2.85Al₅O₁₂, i.e. 5% in Nd atoms, was characterised using XRD, SEM, TEM and luminescence techniques. Characterization results will be discussed.

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