Table 2.
Steady-state OECT performance of polymers
| Polymer | Conc. of Pd [ppm]a | µOECT [cm2 V−1 s−1]b | C* [F cm−3]c | [μC*] [F V−1 cm−1 s−1]d | gm’ [S cm−1]e | |
|---|---|---|---|---|---|---|
| p(g4T2-TT) | Unpurified | 1769 | 3.13 ± 0.52 | 120 ± 9 | 374 ± 67 | 295 ± 57 |
| F2 | 370 | 5.31 ± 2.65 | 246 ± 21 | 1308 ± 662 | 838 ± 438 | |
| F1 | 323 | 5.65 ± 0.19 | 123 ± 15 | 694 ± 87 | 494 ± 17 | |
| F3 | 157 | 6.53 ± 0.065 | 308 ± 20 | 2008 ± 130 | 1457 ± 6 | |
| F4 | 73 | 8.53 ± 0.40 | 114 ± 14 | 972 ± 127 | 626 ± 38 | |
| F3 + Pd2(dba)3 | 2157 | 3.02 ± 0.26 | 287 ± 18 | 860 ± 56 | 602 ± 21 | |
| Recombinedf | 236 | 4.75 ± 1.12 | 123 ± 17 | 451 ± 124 | 231 ± 56 | |
| p(C6g3NDI-T) | Unpurified | 1176 | 1.02 × 10−3 ± 3.79 × 10−4 | 222 ± 79 | 0.227 ± 0.117 | 0.055 ± 0.021 |
| F4 | 540 | 2.26 × 10−3 ± 2.53 × 10−4 | 250 ± 78 | 0.563 ± 0.188 | 0.164 ± 0.018 | |
| F1 | 197 | 3.57 × 10−3 ± 2.94 × 10−4 | 129 ± 55 | 0.461 ± 0.202 | 0.127 ± 0.017 | |
| F3 | 112 | 6.06 × 10−4 ± 1.58 × 10−4 | 521 ± 160 | 0.316 ± 0.127 | 0.095 ± 0.024 | |
| F2 | 39 | 5.34 × 10−3 ± 3.40 × 10−4 | 306 ± 127 | 1.632 ± 0.688 | 0.155 ± 0.020 | |
| F2 + Pd2(dba)3 | 2039 | 1.10 × 10−3 ± 1.52 × 10−4 | 124 ± 26 | 0.136 ± 0.0341 | 0.029 ± 0.003 | |
| Recombinedf | 198 | 1.96 × 10−3 ± 2.25 × 10−4 | 257 ± 101 | 0.503 ± 0.205 | 0.110 ± 0.012 | |
aCalculated from inductively coupled plasma mass spectrometry (ICP-MS, detailed in the SI).
bOECT mobility calculated from the transistor saturation µC* product using the respective C* values.
cC* values extracted from Randles circuit fits from electrochemical impedance curves of the polymers coated on Au electrodes in 0.1 M aqueous NaCl solution.
d[μC*] calculated for the highest performing channel from the slope of gm with known channel dimensions and applied bias.
ePeak OECT transconductance normalized by thickness.
fFormed by combining a mass ratio of 1:1.32:0.16:1 of F1:F2:F3:F4 for p(g4T2-TT), which resulted in Mn = 90.6 kDa and a mass ratio of 1:1.4:1.4:1 of F1:F2:F3:F4 for p(C6g3NDI-T), which resulted in Mn = 61.2 kDa. All measurements are an average across 6 devices.