Zhijin YANG, Zhaoxia HAN, Zhihong ZHANG, Shuhui DING, Dawei ZHANG, Ruijin HONG, Chunxian TAO, Hui LIN, Xueke XU. Preparation of red solid carbon quantum dots and its application in fingerprint detection[J]. Optical Instruments, 2023, 45(3): 37
- Optical Instruments
- Vol. 45, Issue 3, 37 (2023)
Fig. 1. Synthesis of red solid carbon dots and photographs under UV-natural light
Fig. 2. TEM and particle size distribution images of red CQDs
Fig. 3. XRD pattern and Raman spectrum of the red CQDs
Fig. 4. FTIR spectra
Fig. 5. XPS spectra of the red CQDs
Fig. 6. Absorption spectra, emission spectra and fluorescence lifetime decay curves
Fig. 7. Enhanced images and details of latent fingerprints on different substrates
Fig. 8. Identification of latent fingerprints
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