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Enhancing the near-infrared spectral response of silicon optoelectronic devices via up-conversion

Richards, Bryce; Shalav, Avi


A silicon-based optoelectronic device that exhibits an enhanced response to subbandgap light is described. The device structure consists of a bifacial silicon solar cell with an upconverting (UC) layer attached to the rear. Erbium-doped sodium yttrium fluoride (NaY0.8 F4: Er0.23+) phosphors are the optically active centers responsible for the UC luminescence. The unoptimized device is demonstrated to respond effectively to wavelengths (λ) in the range of 1480-1580 nm with an external quantum...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: IEEE Transactions on Electron Devices
DOI: 10.1109/TED.2007.903197


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