Journal
JOURNAL OF APPLIED PHYSICS
Volume 105, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3129315
Keywords
optical arrays; photodiodes; thin film transistors
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Electronics fabricated on a flat flexible substrate can readily be bent into a cylinder or cone but not into a general three-dimensional curved shape. A solution to this problem is described, in which an electronic device is first fabricated on a flat surface and then shaped to a good approximation of any smooth curved shape, using a cut and bend approach, following the design principles of a geodesic dome. A small additional strain allows the surface to conform to an exact spherical cap. The array is fabricated with amorphous silicon thin film transistors and photodiodes on a plastic substrate.
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