Miaomiao YU, Zhankun WENG, Guanqun WANG, Chuanchuan GUO, Junting HU, Zuobin WANG. Rapid fabrication of patterned Cu micro-nano structure by laser ablation in liquid[J]. Optics and Precision Engineering, 2023, 31(15): 2248
- Optics and Precision Engineering
- Vol. 31, Issue 15, 2248 (2023)
Fig. 1. Schematic diagram of patterned Cu micro-nano structure prepared by laser ablation
Fig. 2. SEM images of Cu micro-nano structure prepared at scanning speed of 100 mm/s with different laser powers（Illustration is Fast Fourier Transform spectrum）
Fig. 3. SEM images of Cu micro-nano structure prepared at laser power of 2 W with different scanning speeds （Illustration is a Fast Fourier Transform spectrum）
Fig. 4. SEM images of Cu micro-nano structure prepared with different scanning times at laser power of 2 W and scanning speed of 50 mm/s（illustration is Fast Fourier Transform spectrum）
Fig. 5. EDS and element mapping images of Cu micro-nano structure prepared by scanning 4 times
Fig. 6. XRD spectra of patterned Cu micro-nano structure
Fig. 7. Evolution of patterned Cu micro-nano structure by laser ablation in liquid
Fig. 8. Schematic of droplets on superhydrophobic surfaces with low adhesion （Cassie-Baxter state） and high adhesion （Cassie-impregnating state）
Fig. 9. Water contact angle and oil contact angle of patterned Cu micro-nano structure with different scanning times
Fig. 10. Shape of droplets when patterned Cu micro-nano structure were vertical and inverted
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Table 1. Effect of scanning times on particle size in center of laser spot
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Table 2. Effect of roughness of patterned Cu micro-nano structure on different scanning times
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