Advanced Materials

Close Encounters of the 3D Kind – Exploiting High Dimensionality in Molecular Semiconductors

Authors

  • Peter J. Skabara,

    Corresponding author
    1. WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, UK
    • WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, UK
    Search for more papers by this author
  • Jean-Baptiste Arlin,

    1. Université Libre de Bruxelles (ULB), Faculté des Sciences, Laboratoire de Chimie des Polymères, CP206/1, Boulevard du Triomphe, 1050 Brussels, Belgium
    Search for more papers by this author
  • Yves H. Geerts

    Corresponding author
    1. Université Libre de Bruxelles (ULB), Faculté des Sciences, Laboratoire de Chimie des Polymères, CP206/1, Boulevard du Triomphe, 1050 Brussels, Belgium
    • Université Libre de Bruxelles (ULB), Faculté des Sciences, Laboratoire de Chimie des Polymères, CP206/1, Boulevard du Triomphe, 1050 Brussels, Belgium.
    Search for more papers by this author

Abstract

In this Research News article we discuss the significance of dimensionality on the charge-transport properties of organic semiconductors. Dimensionality is defined in two ways: as a function of (i) the π-conjugated framework within the molecular structure, and (ii) the degree and direction of intermolecular close-contacts between molecules in the bulk. In terms of dimensionality, silicon is a good role model for organic semiconductors, since it demonstrates 3D architecture in the bulk through covalent bonding. Achieving this for organics is challenging and requires not only a 3D molecular structure, but also a network of intermolecular short contacts in three dimensions. This review identifies the limitations of low dimensional materials and summarizes the challenges faced in progressing towards fully 3D organic semiconductors.

Ancillary