fig4
Figure 4. Schematic diagrams of (A) chemical doping in conducting polymers and (B) different specific embodiments and internal structure of doping. Reproduced with permission[96]. Copyright 2020 Royal Society of Chemistry. TE: Thermoelectric; F4TCNQ: 2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane; P3HT: poly(3-hexylthiophene).