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Close Encounters of the 3D Kind – Exploiting High Dimensionality in Molecular Semiconductors
Author(s) -
Skabara Peter J.,
Arlin JeanBaptiste,
Geerts Yves H.
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201200862
Subject(s) - curse of dimensionality , organic semiconductor , materials science , semiconductor , intermolecular force , silicon , nanotechnology , chemical physics , covalent bond , conjugated system , molecule , polymer , computer science , optoelectronics , physics , chemistry , organic chemistry , artificial intelligence , composite material
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.