NASA NTRS · 20230005655
Ni-Silicide Schottky Barrier Micropyramidal Photodetector Array
Abstract
In attempt to increase the quantum yield of metal/silicide Schottky barrier photodetectors, in this work we fabricated and tested Si micropyramidal arrays which are capable to resonantly trap photons in the photodetector areas. To simplify testing, Ni/silicide Schottky barrier photodetectors were formed on the entire 1.5 1.5 mm areas occupied by the micropyramidal arrays. Preliminary testing results revealed potentially stronger photoresponse of micropiramids with narrow tops, but further studies are required to compare the performance of such novel photodetector arrays with different geometrical parameters of micropyramids.
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Astratov, Vasily N., Allen, Kenneth W., Urbas, Augustine M., Limberopoulos, Nicholaos I., Anisimov, Igor, Ariyawansa, Gamini, Duran, Joshua M., Deguzman, Lou, Jin, Boya, Bidney, Grant W., Gunapala, Sarath. 2021-08-16. Ni-Silicide Schottky Barrier Micropyramidal Photodetector Array. https://ntrs.nasa.gov/citations/20230005655
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