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Issue 34, 2017
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Recent progress in the development of n-type organic semiconductors for organic field effect transistors

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Abstract

This review highlights recent major progress in the development of organic semiconductors as electron transport n-channel materials in organic field effect transistors (OFETs). Three types of materials are discussed: (1) small molecules, (2) polymers, and (3) n-doped small molecules and polymers. Much effort has been made in the modification of known building blocks, development of novel building blocks, and optimization of materials processing and device structures. These efforts have resulted in the achievement of record high electron mobilities for both small molecules (12.6 cm2 V−1 s−1) and polymers (14.9 cm2 V−1 s−1), which are approaching the highest hole mobilities achieved by p-type small molecules and polymers so far. In addition, n-doping of ambipolar and p-type organic semiconductors has proven to be an efficient approach to obtaining a greater number of n-type organic semiconductors. However, it is found that n-type organic semiconductors, in general, still lag behind p-type organic semiconductors in terms of carrier mobility and air stability. Further exploration of new building blocks for making novel materials and optimization of processing conditions and device structures are needed to improve the performance, particularly air stability.

Graphical abstract: Recent progress in the development of n-type organic semiconductors for organic field effect transistors

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Article information


Submitted
18 Apr 2017
Accepted
31 Jul 2017
First published
01 Aug 2017

J. Mater. Chem. C, 2017,5, 8654-8681
Article type
Review Article

Recent progress in the development of n-type organic semiconductors for organic field effect transistors

J. T. E. Quinn, J. Zhu, X. Li, J. Wang and Y. Li, J. Mater. Chem. C, 2017, 5, 8654
DOI: 10.1039/C7TC01680H

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