Tailoring the Molecular Structure to Suppress Extrinsic Disorder in Organic Transistors

In organic field‐effect transistors, the structure of the constituent molecules can be tailored to minimize the disorder experienced by charge carriers. Experiments on two perylene derivatives show that disorder can be suppressed by attaching longer core substituents – thereby reducing potential flu...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2014-02, Vol.26 (8), p.1254-1260
Main Authors: Minder, Nikolas A., Lu, Shaofeng, Fratini, Simone, Ciuchi, Sergio, Facchetti, Antonio, Morpurgo, Alberto F.
Format: Article
Language:English
Subjects:
band-like transport
Channels
Condensed Matter
Derivatives
disorder
Disorders
field-effect transistors
Fluctuation
Materials Science
Molecular structure
organic single crystals
Physics
Semiconductor devices
structure-property relationships
Transistors
Transport properties
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Summary:In organic field‐effect transistors, the structure of the constituent molecules can be tailored to minimize the disorder experienced by charge carriers. Experiments on two perylene derivatives show that disorder can be suppressed by attaching longer core substituents – thereby reducing potential fluctuations in the transistor channel and increasing the mobility in the activated regime – without altering the intrinsic transport properties.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201304130