A method for identifying the cause of inefficient salt-doping in organic semiconductors.

ABSTRACT: Doping to enhance the electrical conductivity of organic semiconductors is not without its challenges: The efficacy of this process depends on many factors and it is not always clear how to remedy poor doping. In the case of doping with salts, one of the possible causes of poor doping is a limited yield of integer charge transfer resulting in the presence of both cations and anions in the film. The charge of such ions can severely limit the electrical conductivity, but their presence is not easily determined. Here we introduce a set of simple conductivity measurements to determine whether poor doping in the case where the dopant is a salt is due to limited integer charge transfer. By tracking how the conductivity changes over time when applying a bias voltage for an extended amount of time

SUBMITTER: Rahimichatri A 

PROVIDER: S-EPMC9494613 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature