Processing of Conjugated Ladder Polymers

Synthesis and exceptional operational durability of polyaniline-inspired conductive ladder polymers

“…7,8 For instance, the ladder polymer poly(benzimidazobenzophenanthroline) (BBL) exhibits n -type electrical conductivity as high as 8 S cm −1 after doping, 9 n -type mobility 10 up to 1 cm 2 V −1 s −1 on field effect transistors, and high geometry-normalized transconductance (g m,norm ≈ 11 S cm −1 ) on electrochemical transistors. 11 In addition, BBL also boasts exceptional stability, which enables the processing of this material under strong acidic conditions 12 and ensures long-term durability of device performance without encapsulation or environmental control. We envision that the unique advantages offered by the ladder-type constitution could also be harnessed to enhance the stability and device performance of derivatives of polyaniline, which represents one of the most widely applied redox switchable conductive polymers.…”