fig3

Figure 3. Structural design of pressure sensors: (A) resistive tactile sensor connected with the electrode of transistors (reproduced with permission^[76]. Copyright 2013, Springer Nature); (B) capacitive laminated pressure sensors with Ecoflex dielectric and carbon nanotube electrodes (reproduced with permission^[78]. Copyright 2011, Springer Nature); (C) PDMS with micro-pillars used in pressure sensitive OFET and its sensitivity response curves (reproduced with permission^[44]. Copyright 2010, Springer Nature); (D) fully elastomeric pressure sensor with fingerprint-shaped sensitive material and interlocked sawtooth structure (reproduced with permission^[88]. Copyright 2020, American Chemical Society).