Synthesis and characterization of multicolour fluorescent nanoparticles for latent fingerprint detection

Abstract

In this study, we successfully developed Y2O3 nanoparticles doped with Tb3+and Eu3+ ions to generate fluorescent images of latent fingerprints. The optical and structural characterization of the nanoparticles was carried out and the fluorescence mechanisms are discussed. In our studies, the developed nanoparticles were effective in producing fluorescent images of latent fingerprints in shades of green, red and yellow with high-contrast colour under ultraviolet lighting.