Thickness Dependence of Electronic Structure and Optical Properties of F8BT Thin Films.

ABSTRACT: Electronic devices based on polymer thin films have experienced a tremendous increase in their efficiency in the last two decades. One of the critical factors that affects the efficiency of polymer solar cells or light emitting devices is the presence of structural defects that controls non-radiative recombination. The purpose of this report is to demonstrate a non-trivial thickness dependence of optoelectronic properties and structure (dis)order in thin conductive poly(9,9-dioctyfluorene-alt-benzothiadiazole), F8BT, polymer films. The UV-Vis absorption spectra exhibited blue shift and peak broadening; significant changes in 0-0 and 0-1 radiative transition intensity was found in photoluminescence emission spectra. The density of state (DOS) was directly mapped by energy resolved-electroch

SUBMITTER: Ghasemi B 

PROVIDER: S-EPMC8838540 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature