Table 1 Different formulations and processing of PEDOT hydrogels and their corresponding electronic and mechanical properties
From: Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels
Formulation number | PEDOT:PSS concentration (mg mL−1) | Additive monomer | Monomer concentration (mg mL−1) | Ionic liquid concentration (wt%) | UVλ = 395 nm irradiation time (min) | Post-treatment (Y/N) | Modulus (kPa) | Strain at break (%) | Conductivity (S m−1) |
|---|---|---|---|---|---|---|---|---|---|
Ink 1 | 5 | PEG 1000 | 385 | – | 5 | N | 3875.0 | 76 | 1.0 × 10−2 |
Ink 2 | 5 | PEG 6000 | 455 | – | 5 | N | 195.2 | 186 | 9.2 × 10−3 |
Ink 3 | 5 | PEG 20000 | 313 | – | 5 | N | 99.0 | 287 | 8.5 × 10−2 |
Ink 4 | 5 | AAM/PEG 20000 | 263/263 | – | 5 | N | 161.5 | 800 | 1.9 × 10−2 |
Ink 5 | 9 | PEG 1000 | 100 | – | 2 | N | 41.2 | 136 | 5.6 × 10−2 |
Ink 5* | 9 | PEG 1000 | 100 | – | 2 | Y | 685.0 | 127 | 61.8 |
Ink 6 | 9 | PEG 1000 | 100 | 2 | 2 | N | 33.2 | 96 | 6.8 × 10−1 |
Ink 6* | 9 | PEG 1000 | 100 | 2 | 2 | Y | 54.4 | 130 | 301.9 |
Ink 7 | 9 | PEG 20000 | 100 | 2 | 2 | N | 7.3 | 263 | 2.0 × 10−1 |
Ink 7* | 9 | PEG 20000 | 100 | 2 | 2 | Y | 26.8 | 275 | 163.4 |
