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Synthesis of LaPO 4 : Ce , Tb and their application for developing enhanced latent fingerprint

KUI YU YI1,*

Affiliation

  1. Department of Forensic Chemistry National Police University of China, Shenyang 110035, P. R. China

Abstract

Efficient water soluble rare earth ions (Ce 3+ Tb 3+3+) doped LaPO 4 modified with polyethylene glycol 400 PEG 400 ) were synthesized via a novel hydrothermal process. The as prepared nanowires were characterized by TEM, SAED, EDS and luminescence spectra. The results indicated that the synthesized nano wi re s were easy preparation, low cost, and ha d unique photoluminescence , good monodispersity , enhanced adhesive property, low toxicity, and uniform size distribution. The nanowires emitted green fluorescence, and could be used for enhancing the latent finger print ; resulting the delicate, clear ridges and detail features without background staining . LaPO 4 : Ce, Tb are utilized as alternative fluorescent labeling regents, which have very high practical and identification value in the forensic science..

Keywords

LaPO 4 : Ce , Tb; Synthesis ; Luminescence ; Characterization methods ; Developing fingerprint.

Submitted at: April 8, 2015
Accepted at: May 7, 2015

Citation

KUI YU YI, Synthesis of LaPO 4 : Ce , Tb and their application for developing enhanced latent fingerprint, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 5-6, pp. 665-669 (2015)