High-mobility semiconducting polymers with different spin ground states.

ABSTRACT: Organic semiconductors with high-spin ground states are fascinating because they could enable fundamental understanding on the spin-related phenomenon in light element and provide opportunities for organic magnetic and quantum materials. Although high-spin ground states have been observed in some quinoidal type small molecules or doped organic semiconductors, semiconducting polymers with high-spin at their neutral ground state are rarely reported. Here we report three high-mobility semiconducting polymers with different spin ground states. We show that polymer building blocks with small singlet-triplet energy gap (ΔE_S-T) could enable small ΔE_S-T gap and increase the diradical character in copolymers. We demonstrate that the electronic structure, spin density, and soli

SUBMITTER: Chen XX 

PROVIDER: S-EPMC9042904 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature