By integrating the strongly electron-deficient building blocks cyano-substituted benzochalcogenadiazole and diketopyrrolopyrrole, two A-A polymers were constructed and exhibited decent solubilities, low-lying LUMOs, and ultra-narrow bandgaps, thus leading to a predominant n-type transporting characteristics. When n-type doped with N-DMBI-H, the A-A polymers delivered an n-type performance with a power factor of 9.22 μW m−1 K−2. The design strategy is highly informative for further developing n-type organic thermoelectric materials.
- Junwei Wang
- Kui Feng
- Xugang Guo
