Table 1.
The Taguchi L9 orthogonal table with four experimental parameters: (A) Depths of SiNWA, (B) OAD angle, (c) Thickness of AuNPs, (D) Thickness of AuMBP and the corresponding Raman signal intensity for each trial.
| Trial No. | Control factor level | Average signal Intensity sited at 1073 cm−1 (a.u.) | |||
|---|---|---|---|---|---|
| A | B | C | D | ||
| 1 | 1 | 1 | 1 | 1 | 231.44 |
| 2 | 1 | 2 | 2 | 2 | 656.89 |
| 3 | 1 | 3 | 3 | 3 | 913.88 |
| 4 | 2 | 1 | 2 | 3 | 704.27 |
| 5 | 2 | 2 | 3 | 1 | 580.47 |
| 6 | 2 | 3 | 1 | 2 | 905.77 |
| 7 | 3 | 1 | 3 | 2 | 878.70 |
| 8 | 3 | 2 | 1 | 3 | 934.48 |
| 9 | 3 | 3 | 2 | 1 | 358.95 |
| Control factor | Label | Level 1 | Level 2 | Level 3 | |
| Depths of SiNWA (nm) | A | 150 | 300 | 600 | |
| OAD angle (degree) | B | 60 | 70 | 80 | |
| Thickness of AuNPs (nm) | C | 10 | 20 | 30 | |
| Thickness of AuMBP (nm) | D | 0 | 10 | 20 | |