Greater than 10 cm2 V−1 s−1: A breakthrough of organic semiconductors for field‐effect transistors

• Published in: InfoMat Vol. 3; no. 6; pp. 613 - 630
• Main Authors: Hu, Peng, He, Xuexia, Jiang, Hui
• Format: Journal Article
• Language: English
• Published: Melbourne John Wiley & Sons, Inc 01.06.2021; Wiley
• Subjects: mobility; OFETs; organic semiconductors; single crystals
• ISSN: 2567-3165; 2567-3165
• DOI: 10.1002/inf2.12188

Organic semiconductors have been receiving intensive attention due to the specific advantages of low‐temperature processing ability, low‐fabrication cost, flexibility, and so forth. The charge carrier mobility of higher than 10 cm2 V−1 s−1 for organic semiconductors is of great importance to be studied since it presents a future promising research direction toward commercial microelectronic applications. With the significant progress of the discovery of novel organic molecules and the further improvements of device fabrication technology, some organic molecules can break the limit of our knowledge and show very high mobilities. In this review, organic polymers and small molecules with mobilities above 10 cm2 V−1 s−1 are first introduced to provide the readers with a general understanding of the features and characteristics of high‐performance organic semiconductors. Then, some important parameters, including the molecular structures, the device configurations, and the performance, are discussed in detail. Finally, the clues to obtain high mobility are summarized, and the perspective toward the future possible research directions are also provided. Organic field‐effect transistors with mobility larger than 10 cm2 V−1 s−1 have been receiving intensive attention due to the possibility of commercial applications. In this review, the molecular structures, the device configurations, and the mobilities of high‐performance organic semiconductors, as well as the clues for obtaining high mobilities, are introduced.