Spectroscopic characterization of Er,Yb:Y2Ti2O7 nanoparticles for forensic applications

Fingerprint identification technology has been widely utilized in the forensic field, given that the fingerprint is unique for each person and each finger and does not vary with age. In general, the fingerprints at a crime scene are latent and difficult to collect if the fingers were not contaminated with coloured materials, such as blood, ink or pigment. Moreover, the fingerprints on a smooth plane or transparent glass are hard to be visualized with traditional methods.