Dithienonaphthobisthiadiazole synthesized by thienannulation of electron-deficient rings: an acceptor building unit for high-performance π-conjugated polymers.

ABSTRACT: The development of building units for π-conjugated polymers is a driving force in advancing the field of organic electronics. In this study, we designed and synthesized dithienonaphthobisthiadiazole (TNT) as a thiophene-fused acceptor (A) building unit and two TNT-based π-conjugated polymers named PTNT2T and PTNT1-F. We found that the microwave-assisted thiophene annulation reaction (thienannulation) of arylethynylated naphthobisthiadiazole (NTz) via C-H functionalization effectively produced TNT moieties. With the π-extended structure of TNT, the polymers had rigid backbones that benefited in-plane and out-of-plane charge carrier transport. Organic field-effect transistors (OFETs) based on PTNT2T exhibited hole mobilities as high as 1.10 cm² V^-1 s^-1

SUBMITTER: Mikie T 

PROVIDER: S-EPMC11575601 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature