The charge transport properties of dicyanomethylene-functionalised violanthrone derivatives.

ABSTRACT: The study of organic small molecule semiconductor materials as active components of organic electronic devices continues to attract considerable attention due to the range of advantages these molecules can offer. Here, we report the synthesis of three dicyanomethylene-functionalised violanthrone derivatives (3a, 3b and 3c) featuring different alkyl substituents. It is found that the introduction of the electron-deficient dicyanomethylene groups significantly improves the optical absorption compared to their previously reported precursors 2a-c. All compounds are p-type semiconductors with low HOMO-LUMO gaps (≈1.25 eV). The hole mobilities, measured from fabricated organic field-effect transistors, range from 3.6 × 10^-6 to 1.0 × 10^-2 c

SUBMITTER: Almahmoud SAJ 

PROVIDER: S-EPMC11572013 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature