Table 1. Breakdown of Each Ink Formulation Presented in This Work, in Addition to a Summary of Their Ink Properties, Including Surface Tension, Viscosity, Density, Boiling Point, and Ink Concentrations.
| ink no. | formulation | surface tension (mN/m) | viscosity (mPa s) | density (g/cm3) | boiling point (°C) | particulate concentration (mg/mL) |
|---|---|---|---|---|---|---|
| ink 1 | GNP-CMC-Triton-X-DiW | 35 | 1.2 | 1.02 | 99 | 0.8 |
| ink 2 | GNP-CMC-DiW | 74 | 1.3 | 1.01 | 100 | 0.12 |
| ink 3 | GNP-Eth | 30 | 0.7 | 0.73 | 79 | 2.6 |
| ink 4 | SWNT-Eth | 30 | 1.3 | 0.76 | 79 | 0.12 |
| ink 5 | GNP-Eth | 31 | 1.2 | 0.77 | 79 | 0.12 |
| ink 6 | PEDOT:PSS:Eth | 30 | 13 | 0.78 | 80 | 3.03 |
| ink 7 | Gr-PEDOT:PSS-Eth | 31 | 0.81 | 0.79 | 77 | 0.094 |