Alkylated 2,6-Bis(dicyanomethylene)-2,6-dihydrobenzo[1,2-b:4,5-b′]dithiophenes: New Soluble n-Channel Organic Semiconductors for Air-stable OFETs

Abstract

New solution-prosessable n-channel organic semiconductors were developed based on a 2,6-bis(dicyanomethylene)-2,6-dihydrobenzo[1,2-b:4,5-b′]dithiophene core. The OFETs showed n-channel transistor characteristics under ambient conditions with electron field-effect mobility up to 6.3×10⁻³ cm² V⁻¹ s⁻¹.