Regioisomeric donor–acceptor–donor triads based on benzodithiophene and BODIPY with distinct optical properties and mobilities

Abstract

Two regioisomeric triads D–A1–D and D–A2–D composed of benzodithiophene donors and BODIPY acceptors were synthesized and exhibited spectral coverage up to 700 nm due to efficient intramolecular charge transfer. Structural differences and planarity of these triads lead to distinct photoinduced electron transfer characteristics and charge carrier mobilities of up to ∼10⁻⁴ cm² V⁻¹ s⁻¹.