Vapor phase polymerization of thieno[3,4-<i>b</i>]thiophene-tosylate and its application for dynamic structural coloration.

ABSTRACT: Conducting polymers are important for areas including energy storage, displays, sensors, nanooptics, and bioelectronics. Vapor phase polymerization (VPP) of conducting polymers can provide highly conductive homogenous thin films but was so far reported only for a limited number of materials. Here, we report VPP deposition of the low bandgap conducting polymer poly(thieno[3,4-b]thiophene):tosylate (pT34bT:Tos) and propose an application for dynamic structural coloration. Optimized films show high electrical conductivity of around 750 S cm^-1, manifested optically as wide infrared absorption extending beyond 2000 nm. Electrochemical reduction reveals a neutral low bandgap peak around 1030 nm, making pT34bT comparably transparent also in its neutral state as opp

SUBMITTER: Ansari MS 

PROVIDER: S-EPMC11898598 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature