Spectroscopic interaction of laser dyes and silver nanoparticles stabilized by DiAmsar

Quenching the fluorescence of the dyes rhodamine 6G (Rh 6G) and 4-hydroxycoumarin (4HC) has been investigated in the presence of silver nanoparticles stabilized with DiAmsar. The results of the quenching experiments were analyzed using Stern-Volmer equation. Quenching the fluorescence of the dyes decreased with increasing medium temperature. The Stern-Volmer constant (KRSVR) values in the absence and presence of ethylene glycol show that the quenching efficiencies decrease as the medium temperature increases indicating that the quenching process is a diffusion-controlled process, and this is consistent with a dynamic-type quenching.

Keywords:

Spectroscopic intraction , Laser dye , Silver nanoparticles , DiAmsar