Han DING, Meng WANG. Enhanced Development of Footprints Using YVO4:Eu Luminescent Nanomaterials[J]. Spectroscopy and Spectral Analysis, 2021, 41(1): 88
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 1, 88 (2021)
Fig. 1. TEM image of YVO4:Eu luminescent nanomaterials
Fig. 2. XRD patterns (a), and calculated line patterns (b) of YVO4:Eu luminescent nanomaterials
Fig. 3. UV-Vis absorption spectrum of YVO4:Eu luminescent nanomaterials
Fig. 4. Fluorescence emission spectrum of YVO4:Eu luminescent nanomaterials
Fig. 5. FTIR spectrum of YVO4:Eu luminescent nanomaterials
Fig. 6. Mechanism for development of barefoot impressions using YVO4:Eu nanomaterials
Fig. 7. Barefoot impressions left on ceramic tile (a—c) and laminate floor (d—f), then developed by YVO4:Eu luminescent nanomaterials: (a, d) are images photographed in bright field, (b, e) are images photographed under 254 nm UV light in dark field, (c, f) are magnified images
Fig. 8. Mechanism for development of footwear impressions using YVO4:Eu nanomaterials
Fig. 9. Footwear impressions left on ceramic tile (a—c) and laminate floor (d—f), then developed by YVO4:Eu luminescent nanomaterials: (a, d) are images photographed in bright field, (b, e) are images photographed under 254 nm UV light in dark field, (c, f) are magnified images
Fig. 10. Footwear impression left on ceramic tile then developed by electrostatic attraction method
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