초록 |
Electronic skins (e-skins) which mimics tactile sensing capabilities of human skin can be of use in emerging fields, such as intelligent robots, biomimetic prosthetics, and wearable healthcare monitoring system. To apply e-skins in these various fields, high sensitivity, large dynamic range, and linear response to applied pressure are required, however combining all of these properties in single e-skins remains challenging. Here, we introduce interlocked microdome multilayer system for highly sensitive and ultra-large dynamic range e-skins with linear response. Our e-skins possess high sensitivity under the static/dynamic pressure due to stress concentration between interlocked micordome arrays and increased contact area change in multilayer system. In addition, stress distribution between stacked layers enables linear and ultra-large range pressure sensing, maintaining their high sensitivity upto several hundreds of kPa. |