Author(s) Kamal, R.; Saif, M.
Journal Spectrochim Acta A Mol Biomol Spectrosc
Date Published 2020 Mar 15
Abstract

Production of Nano-Terbium doped barium tungstate and its potential applications as a phosphor in forensic science and anti-counterfeiting ink applications have not been reported in the literature to now. Herein, simple, sensitive and bi-functional green Nanophosphor based on BaWO: xTb was prepared and characterized for latent prints and anti-counterfeiting ink applications. High crystalline tetragonal BaWO phase was obtained with nano-spherical morphology. BWO: xTb Nanophosphors emits a strong and dual green and bluish green colors which appear to the human eye upon UVC and UVA excitation resources, respectively. The lifetime values were increased with rising Tb ion concentrations from 0.01 to 0.07 mol. BWO: xTb Nanophosphor has successfully visualized latent print from various forensic non-porous and porous surfaces. Moreover, BWO: xTb Nanophosphor was used to develop luminescent ink for anti-counterfeiting application.

DOI 10.1016/j.saa.2019.117928
ISSN 1873-3557
Citation Spectrochim Acta A Mol Biomol Spectrosc. 2020;229:117928.

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