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Engineering of Amorphous Polymeric Insulators for Organic Field‐Effect Transistors

Organic field‐effect transistors (OFETs) have received considerable attention across the world due to their potential applications in integrated circuits for large‐area, flexible and low‐cost electronics, and a series of breakthroughs in their research have been made in the past decade. Although numerous novel organic semiconductive materials with outstanding properties have been synthesized, the fabrication of OFETs and the investigation of amorphous polymer insulators (APIs) are attracting more and more research interest due to their significance in semiconductor growth, charge transport and device stability. In this review, an introduction to APIs and OFETs is given, and the following aspects are then successively discussed: commonly used APIs in OFETs, applications of API in high‐performance OFETs, low‐energy‐consumption OFETs, functional OFETs, and self‐healing OFETs. In the last section, a projection of some future trends for APIs in OFETs is presented.