Structure and Electrical Conductivity of Ring Deposits Resulting from Evaporation of Droplets of Dispersions Containing Gold Nanoparticles with Different Degrees of Anisotropy

The effect of the degree of anisotropy (axial ratio) of gold nanoparticles on the structure and conductivity of ring deposits formed on a planar substrate upon evaporation of droplets of aqueous dispersions with different particle number concentrations has been studied. A nontrivial phenomenon of a decrease in the specific conductivity of the deposits with an increase in particle concentration in case of gold nanorods dispersions has been revealed.