Development of U-shape heteroacenes containing heavychalcogen atoms toward high-performance organicsemiconductors

摘要

Organic field-effect transistors (OFETs) have emerged as a promising alternative toinorganic transistors owing to their cost-effective manufacturing and high productivity.Conventional high-performance OFET materials employ linear and symmetric molecularstructure,including Cn-BTBT and Cn-DNTT (Fig.1a).These molecules typically formedlayer-by-layer lamellar structure in their solid state,where-conjugated cores and alkylchains are segregated alternately (Fig.1b).