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Germanium Nanowires as Spectrally-selective Photodetectors in the Visible-to-Infrared

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Abstract

We experimentally demonstrate arrays of vertical Ge nanowires as spectrally-selective photodetectors at visible to infrared wavelengths. Measurements reveal that the external quantum efficiency spectra of fabricated devices vary with the radius of the constituent nanowires.

© 2015 Optical Society of America

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