Metal-enhanced fluorescence of graphene oxide by palladium nanoparticles in the blue–green part of the spectrum |
Schematic of the fluorescence measurement optical setup. L: He-Cd laser; L1, L2, and L3: lenses; S: sample; B: light blocker; F: fluorescence emission; S1 and S2: slits; M1 and M2: concave mirrors; G: grating; P: photodiode; O: oscilloscope; PC: personal computer. |