Zhigang Di, Jianxin Gao, Chunrong Jia, Hao Zhou, Jinxin Li, Huaju Liu, Hengyong Wei. Study on SERS substrate preparation of rice flower type silver/titanium nitride thin films and detection of Rhodamine 6G[J]. Infrared and Laser Engineering, 2024, 53(2): 20230367
- Infrared and Laser Engineering
- Vol. 53, Issue 2, 20230367 (2024)
Fig. 1. (a) Two-dimensional rice flower configuration; (b) Three-dimensional rice flower configuration
Fig. 2. (a) Variation of the enhancement factor with the spacing d ; (b) Variation of the enhancement factor with the radius of the central sphere r
Fig. 3. (a) Variation of enhancement factor with rice flower petal axis a ; (b) Variation of enhancement factor with rice flower petal axis b ; (c) Variation of enhancement factor with rice flower petal axis c
Fig. 4. Electric field distribution of rice flower type silver nanoparticles
Fig. 5. SEM image of the substrate. (a) 1 V; (b) 2 V; (c) 3 V
Fig. 6. XRD map
Fig. 7. SEM images of TiN-Ag composite substrates prepared by different concentration ratios of AgNO3 to trisodium citrate
Fig. 8. SEM image of rice flower type substrate
Fig. 9. SERS patterns of different concentrations of R6G adsorbed on rice flower type TiN-Ag substrates
Fig. 10. Raman signal mapping
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Table 1. SERS substrate performance comparison
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