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Recent progress in developing n-type organic semiconductors for organic field effect transistors

Abstract

This review highlights recent major progress in the development of organic semiconductors as electron transport n-channel materials in organic field transistors (OFETs). Three types of materials are discussed: 1) small molecules, 2) polymers, and 3) n-doped small molecules and polymers. Much efforts have been seen in the modification of known building blocks, development of novel building blocks, and optimizaiton of materials processing and device structures. These efforst have resulted in the achievement of record high electron mobilities for both small molecules (12.6 cm2V-1s-1) and polymers (14.9 cm2V-1s-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 efficienct approach to obtaining a greater number of n-type organic semiconductors. However, it is found that n-type organic semicondcutors, 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.

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Publication details

The article was received on 18 Apr 2017, accepted on 31 Jul 2017 and first published on 01 Aug 2017


Article type: Review Article
DOI: 10.1039/C7TC01680H
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    Recent progress in developing n-type organic semiconductors for organic field effect transistors

    J. Quinn, J. Zhu, X. Li, J. Wang and Y. Li, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC01680H

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