Mustansiriyah Journal of Pure and Applied Sciences

The silver suspension effect on the spectral properties of Rhodamine B dys

D. M. Dahhm , B. A. M. Al Hilli and A.H.Ali

DOI: https://doi.org/10.47831/mjpas.v1i3.53

Keywords: Rhodamine dye, doping, silver particles, absorbance, fluorescence, optical switches.

Abstract

  In this paper, the effect of adding silver nanoparticles to a solution of Rh B dye dissolved in ethyl alcohol with a molar concentration (1x10^-5M) on the spectral properties (absorption and fluorescence) was studied. The results showed an increase in the absorbance peaks and suppression of the fluorescence peaks by adding silver nanoparticles. The results showed an improvement in the absorption peaks with an increase in the added weights and suppression of fluorescence. The phenomenon of damping at the apex of fluorescence is caused by the collision mechanism, by the increase in optical path length, and by the contribution of binary molecules and chromosomal clusters.