Fig. 2: Polymer design and characterization.
From: On-site biosignal amplification using a single high-spin conjugated polymer
a Schematic illustration of the transition from a closed-shell state to an open-shell state as the energy gap between the singlet state and the triplet state decreases. b Resonance structures and the amphoteric redox behaviors of P(TII-Ar), which could encompass both aromatic type (closed-shell) and quinoid type (open-shell) structures. The “Ar” represents the comonomers. c Calculated ΔEST values of the six commonly used high-mobility building blocks. d Calculated ΔEST values of the three polymers: P(TII-T), P(TII-2T), and P(TII-TT). 1, 2, 3, and 4 represent the number of repeating units used for calculation.
