Further, we attempted to explore the ability of solid-state emission of PTE-II for the visualization of latent fingerprints immobilized on two different substrates including aluminum foil and white office paper by using powder dusting method. We successfully achieved the development of LFPs that are visible to the naked eyes and under 365 nm UV lamp as highly yellow and fluorescent fingerprints, respectively (Figure ). By adopting powder dusting method that mimics the carbon dust method in forensic science, the completely dried powder of PTE-II was spread gently on the fingerprints and after 10 minutes, the excess of powder was removed carefully by using a fine brush without disturbing the fingerprints. From the LFP developed on aluminum foil following powder dusting method and visualized under UV lamp, we successfully achieved 2 nd level of information by identifying 5-6 different clearly visible precise points including bifurcation, ridge ending, lake, independent ridge, loop pattern, ridge dot on the fingerprints developed on aluminum foil wrap under 365 UV lamp (Figure ). complex was done with Job's plot and revealed that the complex resulted from 1:1 (Ligand:metal) stoichiometric ratio and DLS studies suggested the increase in the size after complexation.