Fig. 2
From: Materials tactile logic via innervated soft thermochromic elastomers
Thermomechanochromism effects and tactile sensing. a Stretching a liquid metal wire causes the geometry of the wires to change, and thus, the resistance and the current density increase. These changes increase Joule heating, resulting in a color change. b Change in resistance as a function of strain. ∆R is the resistance at a given strain minus the resistance at 0% strain. c Photographs of a device being stretched while maintaining constant current (but increased current density). d Change in resistance as a function of pressure through a single serpentine conductor. Inset images show the color change in response to different pressures (100 and 200 kPa). e The color response depends on the current and pressure for a 1 mm width linear microchannel device
