<i>In situ</i> monitoring of polarons in a mixed conducting polymer using ultrafast transient absorption spectroelectrochemistry.

ABSTRACT: Organic mixed ionic-electronic conducting polymers remain at the forefront of materials development for bioelectronic device applications. During electrochemical operation, structural dynamics and variations in electrostatic interactions in the polymer occur, which affect dual transport of the ions and electronic charge carriers. Such effects remain unclear due to a lack of in situ spectroscopic methods capable of capturing these dynamics, which hinders the rational design of higher-performance polymers. Herein, we present the first in situ transient absorption spectroelectrochemical measurement of a conducting polymer in the near-infrared, where photoexcited charge carrier dynamics are used to directly probe their nanoscale environment and trapping behavior in working electr

SUBMITTER: Clark C 

PROVIDER: S-EPMC12412052 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature