Detection of latent fingerprints using luminescent Gd0.95Eu0.05PO4 nanorods

• 作者: Pushpendra Indranil Suryawanshi Rimple Kalia Ravi K.Kunchala Shyam Lal Mudavath Boddu S.Naidu
• 来源期刊: 稀土学报（英文版）
• 年，卷（期）: 2022,（4）
• 所属期刊栏目: SPECTROSCOPY,LUMINESCENCE AND PHOSPHORS
• 页码范围: 572-578
• 页数: 7页
• 语种: 英文

摘要

Lanthanide ions doped luminescent materials are widely studied for latent fingerprint detection.How-ever,most of these materials are synthesized at very high temperatures and use UV C light for visuali-zation,which is harmful to eye,skin,etc.Herein,the Gd0.95Eu0.05PO4 nanorods synthesized by a simple co-precipitation method at 185℃were reported for latent fingerprint visualization under 395 nm light.The Gd0.95Eu0.05PO4 nanomaterial has monoclinic crystal structure and shows rod-shaped morphology.Further,these Gd0.95Eu0.05PO4 nanorods exhibit excellent photoluminescence properties and strong fuchsia emission under UV light.These nanorods have been employed for developing latent fingerprints on various porous and non-porous substrates by the powder dusting technique,which exhibits clear and well defined details with high contrast,selectivity and sensitivity under 395 nm UV light.Latent fin-gerprints developed after 72 h of their deposition also show clear contrast with these nanorods.Therefore,the Gd0.95Eu0.05PO4 nanorods can be used for latent fingerprint visualization applications.