Absorption spectrum of the trimer silver cluster and metal nanoparticles in microemulsion

Classical quantum simulation suggests the formation of Ag 3 2 + [Chem. Phys. Lett. 389 (2004) 150]. We present the effect of water pool radii on the transient absorption spectra of initial silver clusters. Experimental evidence for the formation of Ag 3 2 + in microemulsion system is reported for the first time. The surface plasmon absorption band of stable silver clusters obtained by bombardment of electron pulses in water-in-oil microemulsions showed absorption maximum at 405 nm. The transmission electron micrograph studies showed the presence of silver nanoparticles having an average size of 10 nm.