Table 1.
Sample | A1 | A2 | A3 | A4 | A5 |
---|---|---|---|---|---|
Energy (mJ) |
2.2 | 3.7 | 6.9 | 13.6 | 15.3 |
Laser fluence (J/cm2) |
0.4 | 0.5 | 0.8 | 1.1 | 3.3 |
Average ablation rate (ng/pulse) |
18.8 | 21.0 | 22.9 | 24.6 | 33.2 |
Atoms/pulse (n/pulse) × 1015 |
1.05 | 1.17 | 1.28 | 1.37 | 1.85 |
Average ablation efficiency (ng/(pulse × J)) |
8.5 | 5.7 | 3.3 | 1.8 | 2.2 |
Thickness (nm) |
32 | 70 | 125 | 265 | 200 |
Deposition rate (nm/pulse) × 10−4 |
8 | 18 | 31 | 66 | 50 |
Droplet density (n/μm2) |
0.47 | 0.55 | 0.75 | 0.84 | flakes |