Stretchable electronics enabled by liquid metal fiber mat

Title

 Stretchable electronics enabled by liquid metal fiber mat

Speaker

Prof. Zhijun Ma (马志军), Research center for humanoid sensing, Zhejiang Lab

Host

Prof. Yan Wang (GTIIT, Chemical Engineering)

Time and Location

Nov. 22, 2022, Tuesday, 10:00am-11:00am (China Time), E408 (Education Building, 4th floor)

Language

Chinese(中文)

Tencent Meeting(腾讯会议): 220-149-176

https://meeting.tencent.com/dm/9soygJ3xMNZ

Abstract

Stretchable electronic devices can find wide range of applications in wearable electronics, soft robotics, meta-universe, etc. Traditional stretchable electronic devices that fabricated using rubber film as substrate lack high enough permeability, making them unsuitable for long-term on-skin applications. Meanwhile, poor permeability is also disadvantageous for high-density function integration in three dimensions. Herein, we propose a strategy for making stretchable conductive materials based on electrospun elastomer fiber mat and room-temperature liquid metal as building blocks. This material is fabricated by simply coating liquid metal on elastomer fabric and subsequent stretching to impart high permeability and electrical stability. This material simultaneously possesses high stretchability, conductivity and biocompatibility. Meanwhile, it is safe for long-term on-skin use. By altinatively perfoming electrospinning of elastomer fibers and printing of liquid metal, we further fabricated permeable superelastic electronic devices with vertically stacking of multiple functional layers.

Biography

Zhijun Ma graduated as a doctor of materials science and engineering from Zhejiang university. He is presently a senior researcher (PI) in the research center for humanoid sensing of Zhejiang Lab and a doctoral supervisor in the school of materials science and engineering of Zhejiang University. Meanwhile, Dr. Ma is also a member of the editorial board of “Laser & Optoelectronics Progress”-a pioneering journal published by the Chinese Laser Press. Dr. Ma focuses his research interest on advanced functional fiber materials and devices, and their potential applications in wearable electronics. He has been authored by more than 120 peer-reviewed papers with a total citation over 3000, and leading 8 national/provincial research projects. His representative work “Permeable superelastic liquid-metal fibre mat enables biocompatible and monolithic stretchable electronics” was selected as a candidate of “10 Major Developments in 2021 in the semiconductor research fields of China”.