Fig. 2. Characterization of the multifunctional sensing performances.

(A) Electrical resistance changes under various pressures applied on the P/T-unit. (B) Electrical resistance changes of the P/T-unit under various temperature changes. (C) Real-time responses to temperature change of the P/T-unit. (D) Dynamic response of the P-unit under a 10-kPa pressure. (E and F) Cyclic loading on the P-unit for 10,000 times at a frequency of 3 Hz. (G) Real-time recorded resistance changes of the P/T-unit subjected to pressing and heating simultaneously. The inset schematically shows the operation process. (H) The correspondingly measured pressure and temperature signal of the P-unit and the T-unit, respectively.