Demonstrates enhanced charge mobility in organic electrochemical transistors through precise polymer functionalization, suggesting implications for high-performance materials.
Key Points
The study aims to optimize the properties of π‐conjugated polymers used in organic electrochemical transistors (OECTs) through a novel phosphonylation approach.
Implemented a degree of functionalization (DOF)-tunable electrochemical C–H phosphonylation strategy.
Examined the effects of functionalization on semicrystalline high-mobility conjugated polymers like PBTTT and DPP-DTT.
Measured charge mobility and switching characteristics in Nafion-composite films.
Functionalization achieved DOF values up to 0.91, significantly enhancing charge mobility.
Moderate functionalization (DOF = 0.06–0.16) increased charge mobility in OECTs by nearly two-fold.
Phosphonylated materials showed improved switching characteristics and ionic accessibility.