Thermomechanical Behavior of Poly(3-hexylthiophene) Thin Films on the Water Surface.

ABSTRACT: The thermomechanical behavior of a conjugated polymer (CP) in a thin film state has rarely been studied despite the importance of understanding the polymer morphologies and optimizing the thermal processes of organic semiconductors. Moreover, the seamless integration of multilayers without mechanical failures in CP-based electronic devices is crucial for determining their operational stability. Large differences in the coefficients of thermal expansion (CTEs) between the multilayers can cause serious degradation of devices under thermal stress. In this study, we measure the intrinsic thermomechanical properties of poly(3-hexylthiophene) (P3HT) thin films in a pseudo-freestanding state on the water surface. The as-cast P3HT thin films exhibited a large thermal shrinkage (-1001 ppm K^-1<

SUBMITTER: Ma BS 

PROVIDER: S-EPMC9202286 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature