STACKED MULBERRY PAPER COATED WITH MXENE FOR HIGHLY SENSITIVE PRESSURE DETECTION WITH WIDE SENSING RANGE

초록

We demonstrate a tactile sensor using MXene-coated mulberry paper with high sensitivity over 20 kPa(-1) and wide sensing range up to 1000 kPa. The pressure-sensing element is comprised of the stacked structure of mulberry paper which is prepared with dip-coating highly electrically conductive Ti3C2Tx. Mulberry paper has a rough surface and a highly porous structure when comparing those of other paper. This induces the significant change in contact area between mulberry paper when the pressure is applied. In addition, the stacked structure of mulberry paper allows an increase in contact area and efficient stress distribution between layers, resulting in high sensitivity over a wide pressure range. The sensor performance in terms of sensitivity and detection range is compared with those of recently reported MXene-based tactile sensors. This reveals that our approach is effective for achieving high-performance tactile sensor.

키워드