Fingerprint detection application
The non-toxic longest lifetime and high intense red luminescent 15 mol% Eu3+:Y2Ti2O7 nanophosphor
embedded into silica matrix was checked for being used in latent fingerprint sensor on most
smooth non-penetrative or non-porous surfaces, as well as semi-porous or porous surfaces. Fig. 7 shows the
fresh fingerprint images developed by Eu3+:Y2Ti2O7 nano-phosphor embedded into silica matrix from glass,