Table 1 Summary of the two polymer series’ physical and optoelectronic properties

From: The effect of residual palladium on the performance of organic electrochemical transistors

Polymer

Mn (kDa) [Ð]a

Eg,opt (eV)b

λmax, sol (nm)c

EA (eV)d

IP (eV)d

p(g4T2-TT)

Unpurified

83.3 [1.36]

1.67

610

–

4.23

F1

180.1 [1.30]

–

4.24

F2

107.9 [1.12]

–

4.25

F3

61.3 [1.25]

–

4.24

F4

18.4 [1.15]

–

4.26

Recombined

90.6 [1.28]

    

p(C6g3NDI-T)

Unpurified

42.4 [2.13]

1.65

323, 540

4.19

–

F1

211.0 [1.95]

4.18

–

F2

99.8 [1.34]

4.18

–

F3

46.2 [1.67]

4.17

–

F4

17.6 [1.48]

4.19

–

Recombined

61.2 [1.92]

    
  1. aNumber-average molecular weight (Mn) and dispersity (Ð) measured by GPC vs polystyrene standards in dimethylformamide for p(g4T2-TT) or chloroform for p(C6g3NDI-T) at 40 °C.
  2. bOptical band gap estimated from thin film UV-Vis absorption onset.
  3. cPeak wavelength obtained from solution UV-Vis absorption spectra in chloroform.
  4. dCalculated from the onset of the cyclic voltammogram of polymer thin films on glassy carbon electrode with 0.1 M tetrabutylammonium hexafluorophosphate as the supporting electrolyte using a platinum counter electrode and a silver/silver chloride reference electrode (Supplementary Fig. 13).
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