Highly stretchable electroluminescent skin for optical signaling and tactile sensing

Cephalopods such as octopuses have a combination of a stretchable skin and color-tuning organs to control both posture and color for visual communication and disguise. We present an electroluminescent material that is capable of large uniaxial stretching and surface area changes while actively emitting light. Layers of transparent hydrogel electrodes sandwich a ZnS phosphor-doped dielectric elastomer layer, creating thin rubber sheets that change illuminance and capacitance under deformation. Arrays of individually controllable pixels in thin rubber sheets were fabricated using replica molding and were subjected to stretching, folding, and rolling to demonstrate their use as stretchable displays. These sheets…

• NS
  National Science Foundation

  Award: DGE-1144153
• AF
  Air Force Office of Scientific Research

  Award: FA9550-15-1-0160
• AR
  Army Research Office

  Award: W911NF-15-1-0464