Close encounters of the 3D kind – exploiting high dimensionality in molecular semiconductors

Peter J. Skabara, Jean-Baptiste Arlin, Yves H. Geerts

Research output: Contribution to journalArticle

65 Citations (Scopus)

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 -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.

Original languageEnglish
Pages (from-to)1948-1954
Number of pages7
JournalAdvanced Materials
Volume25
Issue number13
Early online date10 May 2012
DOIs
Publication statusPublished - 4 Apr 2013

Keywords

  • organic semiconductors
  • charge-transport
  • self-assembly
  • organic field effect transistors
  • organic solar cells

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