Interplay of structural dynamics and electronic effects in an engineered assembly of pentacene in a metal-organic framework.

ABSTRACT: Charge carrier mobility is an important figure of merit to evaluate organic semiconductor (OSC) materials. In aggregated OSCs, this quantity is determined by inter-chromophoric electronic and vibrational coupling. These key parameters sensitively depend on structural properties, including the density of defects. We have employed a new type of crystalline assembly strategy to engineer the arrangement of the OSC pentacene in a structure not realized as crystals to date. Our approach is based on metal-organic frameworks (MOFs), in which suitably substituted pentacenes act as ditopic linkers and assemble into highly ordered π-stacks with long-range order. Layer-by-layer fabrication of the MOF yields arrays of electronically coupled pentacene chains, running parallel to the substrate surface. D

SUBMITTER: Haldar R 

PROVIDER: S-EPMC8179632 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature