Research Progress on the Preparation of Flexible High-precision Conductive Patterns by Inkjet Printing

The preparation of flexible high-precision conductive patterns is a very critical and important step for the realization of next-generation ultra-low power consumption and flexible electronic devices. From the perspective of processing and manufacturing, the inkjet printing technology of on-demand deposition, as a net shape deposition technology, brings huge opportunities for the preparation of low-cost thin-film devices with its unique advantages. Although there are still challenges in the commercialization of printed wearable electronic devices, in recent years, considerable research efforts on ink materials, inkjet printing processes and device structures have continuously promoted the progress of printing flexible high-precision conductive patterns. This article focuses on the development of flexible conductive pattern ink system, conductive pattern flexibility improvement technology and conductive pattern accuracy improvement technology, discusses the progress made in printing flexible high-precision conductive patterns in recent years, as well as future development and challenges. © 2022 Cailiao Daobaoshe/ Materials Review. All rights reserved.