Table 1 Properties of p(gNDI-T2) and p(gNDI-gT2).

From: N-type organic electrochemical transistors with stability in water

Polymer IP * [eV] EA * [eV] Bandgap ΔE=IP−EA Absorption onset [nm] Repeating units [NMR]
p(gNDI-T2) 5.53 3.85 1.68 817
p(gNDI-gT2) 4.83 4.12 0.71 1,550 7
  1. Ionization potential (IP), electron affinity (EA) and bandgap measured by cyclic voltammetry (CV) of a thin film in 0.1 M TBAPF6 (ACN) acetonitrile solution.
  2. *CV measurements of the films with the onset energy value for oxidation and reduction peak.
  3. End capping for p(gNDI-T2) could not be carried out due to a low solubility of the polymer.
  4. The number of repeating units was calculated by 1H NMR spectroscopy as well as MALDI-TOF spectrometry.