Isomeric indacenedibenzothiophenes: synthesis, photoelectric properties and ambipolar semiconductivity

Abstract

Isomeric indacenedibenzothiophenes featuring unique photoelectric properties were synthesized using a new strategy via double C–H activation cyclization. Single-crystal field-effect transistors based on IDBT-l-TIPSA delivered high and balanced ambipolar property under ambient conditions.

Abstract

A new strategy via double C–H activation cyclization has been developed for the versatile synthesis of IDBT derivatives with quite different photoelectric properties. Single-crystal field-effect transistors based on IDBT-l-TIPSA delivered high and balanced charge carrier mobilities of up to 0.64 cm ² V ⁻¹ s ⁻¹ for holes and 0.34 cm ² V ⁻¹ s ⁻¹ for electrons under ambient conditions.