| 초록 |
Electronic skin (e-skin) has been attracted in various fields such as wearable electronics, robotics, and medical applications. Here, we suggest novel design of bio-inspired e-skin composed of hierarchical polydimethylsiloxane (PDMS) micropillar arrays decorated with ZnO nanowire (NW) forest in an interlocked geometry. The interlocked hierarchical structures enable a stress-sensitive variation in the contact area and the efficient bending of NWs. In addition, the bio-inspired e-skin can percive both static and dynamic tactile stimuli through piezoresistive and piezoelectric transduction modes. Our e-skin in a piezoresistive mode shows a high pressure sensitivity (6.8 kPa-1) and an ultra-fast response time ( |
