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3D-Printed Photodetectors Could Be Basis for 'Bionic Eye'

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A University of Minnesota research team has 3D-printed an array of light receptors on a hemispherical surface, in a first step toward creating a “bionic eye” that could someday help blind people see or sighted people see better. Using their custom-built 3D printer, the researchers started with a base ink of silver particles. The ink, when dispensed on the surface of a hemispherical glass dome, stayed in place and dried uniformly instead of running down the curved surface. The researchers then used semiconducting polymer materials to 3D-print photodiodes, which convert light...Read full article

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