Fluorescence Quenching: Size- and Shape-Dependent Fluorescence Quenching of Gold Nanoparticles on Perylene Dye (Advanced Optical Materials 8/2013)




When gold nanoparticles meet strongly fluorescent dye molecules, the fluorescence of the molecules is quenched. On page 581, organo-soluble thiol monolayer-protected gold nanoparticles of different shapes and sizes are homogeneously mixed with perylene dye molecules by Q. Li and co-workers, in both solution and solid states. The nanoparticles modify the fluorescence properties of perylene depending on the particle size and shape. This demonstrates the potential to introduce gold nanoparticles into practical applications such as antifraud technologies.