Comparative Evaluation of Pyrrole Fused Donor Moieties: 1H-Indole and Pyrrolo[2,3-<i>b</i>] Pyridine in Benzothiadiazole-Based D-A-D Type Conjugated Small Molecules for Organic Field-Effect Transistors.

ABSTRACT: Pyrrolic units have been utilized as building blocks for organic semiconducting small molecules and polymers in the recent past. Even though pyrrole-based materials have shown promising semiconducting properties, they have been challenging due to their lower stability under ambient conditions. In this study, we synthesized two pyrrole-fused moieties: 1H-indole (IN) and pyrrolo[2,3-b] pyridine (PPy), which were then explored for their potential as effective donor moieties in organic semiconducting materials. Each donor block was employed to synthesize two donor-acceptor-donor-type small molecules. Thiophene-flanked benzo[c][1,2,5]thiadiazole was used as an acceptor to generate diethyl 6,6'-(benzo[c][1,2,5]thiadiazole-4,7-diylbis(thiophene-5,2-diyl))bis(1-dodecyl-

SUBMITTER: Udamulle Gedara CM 

PROVIDER: S-EPMC11966319 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature