Extremely Stretchable Electroluminescent Devices with Ionic Conductors

Abstract
An extremely stretchable electroluminescent device is fabricated based on alternating‐current electroluminescent (ACEL) materials and ionic conductors. The stretchable ACEL device possesses extremely high stretchability, and can be linearly stretched to 700% with the luminance being maintained at 70% of the initial value before stretching. The ACEL device can be repetitively stretched to 400% with stable emission behavior.