Research / 2021 / Article / Fig 6

Research Article

A Printable and Conductive Yield-Stress Fluid as an Ultrastretchable Transparent Conductor

Figure 6

Stretchable alternating current electroluminescent (ACEL) device under uniaxial tensile deformations. (a) Schematic illustration of the ACEL device. (b) A series of optical images showing a representative device with a spiral-shaped luminous pattern at different uniaxial tensile strains. Scale bar: 5 mm. (c) Luminance versus voltage amplitude of a stretchable ACEL device powered by square-wave voltages at 25 kHz. (d) Normalized luminance as a function of tensile strain. (e) Evolution of normalized emission intensity over 500 stretch relaxation cycles in the strain range from 100% to 400%.