Study of the adsorptive behavior of water-soluble dye molecules (rhodamine 6G) at the air-water interface using confocal fluorescence microscope.


A confocal fluorescence microscope was applied to directly study the characteristic behaviors of adsorbed molecules at the air-water interface for a water-soluble chromophore, rhodamine 6G (R6G), in its extremely low-concentration region (below 10(-10) M). Significant photon bursts were observed only from the surface, and their width, height, and frequency… (More)