Lifetime, efficiency and photostability enhancement of pyrromethene laser dyes by metallic Ag nanoparticles

Abstract EN

Complexation of metallic silver nano particles (NPs) with Pyrromethene laser dyes (PM567, PM597) has significant effect on lifetime, photostability and the fluorescence efficiency.

These enhancement of optical properties of the complex in solution due to surface Plasmon resonance (SPR) have been promised higher efficiencies in case of [40% Ag NPs: PM dye] complexes for dye laser systems.

The fluorescence lifetimes of PM dyes in optimum complex concentration are significantly shorter than the pure dye revealing a decrease of non-radiative decay rate of the dyes.

Also, the optimum complex concentration show higher photostabilities and fluorescence efficiencies of the PM dyes than the dyes itself.