Table 3.
Composition of the sensing/dielectric solution for the different sensing elements.
| Sensor ID | Solvatochromic Dye | Polymer | Solvent |
|---|---|---|---|
| S1 | Nile-red | PVC | DMAC |
| S2 | Reichardt’s dye (R-dye) | PVC | DMAC |
| S3 | Auramine O | PVC | DMAC |
| S4 | Rhodamine B | PVC | DMAC |
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