Influence of electrodynamic interactions of particles on absorption spectra of silver sols during their aggregation

Reasons for changes in plasmon absorption spectra of polydisperse silver sols whose particles belong to the most characteristic range of sizes (5-30 nm), in which the Mie theory poorly agrees with experi- mental data, are discussed. It was shown that, in this range of sizes, electrodynamic interactions between the particles should be taken into account for description of absorption spectra of typical Ag sols with an accuracy approaching experimentally determined dependences. © 2003 MAIK "Nauka/Interperiodica".