Author/Authors :
Casalboni، نويسنده , , M. and De Matteis، نويسنده , , F. and Prosposito، نويسنده , , P. and Quatela، نويسنده , , A. and Sarcinelli، نويسنده , , F.، نويسنده ,
Abstract :
We report on the fluorescence efficiency of four infrared (IR) polymethine dyes. These figures have been determined using an indirect method based on a fluorescence standard (Rhodamine B in ethanol). The fluorescence decay times have been measured too and their correlation with the quantum efficiency data has been shown. The optical behavior of the IR dyes in three solvents with different polarities has been compared and discussed.