Issue 13, 2022

Single-crystal dielectrics for organic field-effect transistors

Abstract

A gate dielectric is essential to OFETs due to its crucial role in generating an electric field and forming conductive channels. The dielectric and surface properties of gate dielectrics are of vital significance to the performance of OFETs. Here, this review focuses on studies discussing the crystallinity of gate dielectrics and their corresponding effects on the performance of OFETs. In general, a higher crystallinity of the gate dielectric benefits the crystallization behavior of the upper-layer semiconductor and the stability at the semiconductor/dielectric interface, which further leads to enhanced mobility and stability of OFETs. With inherent long-range ordering and low defect densities, single-crystal materials are promising candidates as gate dielectrics as demonstrated by recent studies. With proper fabrication and integration techniques, single-crystal dielectrics will boost the development of OFETs towards higher performance and practical applications.

Graphical abstract: Single-crystal dielectrics for organic field-effect transistors

Article information

Article type
Review Article
Submitted
08 Jan 2022
Accepted
20 Feb 2022
First published
25 Feb 2022

J. Mater. Chem. C, 2022,10, 4985-4998

Single-crystal dielectrics for organic field-effect transistors

M. Chen, B. Peng and H. Li, J. Mater. Chem. C, 2022, 10, 4985 DOI: 10.1039/D2TC00100D

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