Premium
Tuning Crystalline Solid‐State Order and Charge Transport via Building‐Block Modification of Oligothiophenes
Author(s) -
Reese Colin,
Roberts Mark E.,
Parkin Sean R.,
Bao Zhenan
Publication year - 2009
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.200900836
Subject(s) - materials science , chemical physics , charge (physics) , intermolecular force , crystal structure , charge carrier , nanotechnology , crystallography , optoelectronics , molecule , organic chemistry , chemistry , physics , quantum mechanics
The packing structure of a series of oligothiophenes is tuned via terminal substitution (see figure). The structural changes dramatically alter intermolecular interactions and charge‐transport properties, as measured by elastomeric single‐crystal field‐effect transistors. Electronic structure calculations reveal the sensitivity of the transport efficiency to orbital nodal alignment, as correlated to the observed trend in field‐effect mobilities.