Prof.  Jing  Zhao
Beijing Institute of Technology,  China

Title: Skin-inspired High-Performance Active-matrix Circuitry for Multimodal User-interaction

Abstract:

Artificial electronic skin (e-skin), a network of mechanically flexible sensors which can wrap irregular surfaces conformally and quantify various stimuli sensitively, is potentially useful in healthcare monitoring and human machine interaction (HMI). However, although various approaches have mimicked structures and functions of the human skin, challenges remain for high density integration, super sensitivity and multi-functionality. Here we design a multimodal and comfortable skin-inspired active-matrix circuitry with high pixels density (> 100 /cm²) based on all two-dimensional materials, which exhibits excellent performance to detect both mechanical interactions and humidity variations. The ultrahigh sensitivity (> 400 and ~ 10⁴ for strain and humidity sensing respectively), long-term stability (> 1000 cycles) and rapid response time for every pixel can fulfill simultaneous multi-stimulus sensing. Accordingly, we constructed a respiratory monitor to realize healthcare monitoring through observing the human breath frequency, intensity and humidity in real time. Moreover, the multimodal e-skin breaks through shackles of contact sensor medium for HMI. Three-dimensional (3D) strain and humidity spatial mapping can reflect object location information even without contact, avoiding cross-infection of viruses effectively between the users during the COVID-19 pandemic. The reported e-skin can broaden applications for future healthcare and human-machine interactive devices.

Biography:

Jing Zhao joined Beijing Institute of Technology (BIT) as a professor in 2019. Before joining BIT, she worked in Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences as assistance Professor since 2016. Jing Zhao received her Ph.D. in condensed matter physics from Institute of Physics, Chinese Academy of Sciences (IOP, CAS) in June 2016. Jing Zhao's work pioneered in the field of flexible electronics, especially devices based on two-dimensional materials for sensors, memory and so on. The current research interests of her group include artificial electronic skin, micro-nano robot fabrication, aim to develop advanced systems for human health monitoring and human-machine interface.