| Sample ID | Aspect ratio [A × 2N]/L (m) | A (m2) | L (m) | R (Ω) | N | Cost [£] |
| S1 | 0.031 | 1 × 10−6 | 2 × 10−3 | 1.7 | 62 | 15 |
| S2 | 0.292 | 2 × 10−6 | 1.7 × 10−3 | 3.5 | 127 | 32 |
| S3 | 0.530 | 7.6 × 10−6 | 3.6 × 10−3 | 1.6 | 127 | 65 |
| S4 | 0.690 | 1.7 × 10−5 | 2.4 × 10−3 | 0.2 | 48 | 50 |