Growth Mechanism of Strain-Dependent Morphological Change in PEDOT:PSS Films.

ABSTRACT:

Unlabelled

Understanding the mechanism of the strain-dependent conductivity change in polymers in stretched conditions is important. We observed a strain-induced growth of the conductive regions of

Pedot

PSS films, induced by a coalescence of conductive PEDOT-rich cores. This growth due to coalescence leads to a gradual decrease in the electrical resistivity up to 95%, independent of the thickness of the

Pedot

PSS films. The primary mechanism for the evolution of the PEDOT-rich cores proceeds by the cores growing larger as they consuming relatively smaller cores. This process is caused by a strain-induced local rearrangement of PEDOT segments in the vicinity of PSS shells around the cores and also changes the chemical environment in PEDOT, induced by the electron-with

SUBMITTER: Lee YY 

PROVIDER: S-EPMC4850459 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature