New Organic Semiconductors for Stable, High-Performance Organic Thin-Film Transistors

摘要

Novel sulfur-containing aromatic compounds were developed as stable, high-performance organic semiconductors for OTFT applications. Of them, dinaphtho[2,3-b:2',3'-f]thieno[3,2-b]thiophene (DNTT) consisting of six aromatic rings gave high quality thin films by vapor deposition, which acted as a superior FET channel showing FET mobility as high as 3.0 cm~2 V~(-1)s~(-1). On the other hand, highly soluble 2,7-dialkyl[1]benzothieno[3,2-b][1]benzothiophenes (C_n-rnBTBTs) gave solution-processible OTFTs with FET mobility higher than 1.0 cm~2 V~(-1) s~(-1).