Abstract
Zinc oxide is evaluated as a fluorescent powder for the detection of fingermarks on non-porous surfaces. Pure and lithium-doped nanostructured zinc oxide powders were characterized using scanning electron microscopy, X-ray diffraction, and fluorescence spectroscopy. The zinc oxide powders were applied to fresh and aged fingermarks deposited on non-porous surfaces such as glass, polyethylene and aluminium foil. Zinc oxide was found to produce clear fluorescent impressions of the latent fingermarks when illuminated with long-wave UV light.
Original language | English |
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Pages (from-to) | 732-737 |
Number of pages | 6 |
Journal | Journal of Materials Science |
Volume | 42 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2008 |
Keywords
- X ray diffraction
- biometrics
- fingerprints
- fluorescence
- forensic sciences
- zinc oxide