| Autor: |
A. Sandhyarani, M.K. Kokila, G.P. Darshan, S.C. Sharma, D. Kavyashree, H.B. Premkumar, H. Nagabhushana |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Journal of Science: Advanced Materials and Devices, Vol 5, Iss 4, Pp 487-496 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2468-2179 |
| DOI: |
10.1016/j.jsamd.2020.08.003 |
| Popis: |
Herein, a series of SrTiO3:Nd3+ (1–11 mol %) nanophosphors has been prepared via a conventional hydrothermal route. Their anti-counterfeiting and latent fingerprint visualization applications are reported, which show important level-III features and unclonable tags. The cubic structure was confirmed by powdered X-ray diffraction studies with space group Pm-3m (No-221). The photoluminescence (PL) characterization results evinced that the nanophosphor emits intense blue light. The optimized nanophosphors were used to visualize latent fingerprints through recognizing level I-III ridges by a reduced background hindrance and can be utilized for visualizing latent fingerprints on difficult substrate surfaces with superior sensitivity, high contrast and selectivity. Further, a furthermost possible stochastic process to make unclonable anti-counterfeiting tags using optimized nanophosphor was designed to reduce counterfeit products. Therefore, it is believed that this optimized nanophosphor for visualization of latent fingerprints as well as unclonable anti-counterfeiting tags will find widespread use in forensic investigations and product safety applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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