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Light-Emitting Rubber Could Sense Structural Damage
Atomic force microscopy image shows ripples on the surface of a rubbery material called PDMS. The ripples affect the color of light emitted when the material is stretched.
Princeton University Macroelectronics Group
Researchers at Princeton University have built a new type of sensor that could help engineers quickly assess the health of a building or bridge. The sensor is an organic laser, deposited on a sheet of rubber: when it's stretched—by the formation of a crack, for instance—the color of light it emits changes.
From Technology Review
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