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- W2015657137 abstract "The wavelength limit (λc) of detection in a conventional photodetector is limited to a characteristic energy (Δ) through the relationship: λc = hc/Δ, where Δ also determines the detector noise (dark current) and hence its performance such as the operating temperature. Here, we report an infrared photodetector with an extended operating range (responding beyond the standard spectral threshold) based on a hot-hole energy transfer mechanism. A detector with Δ = 0.32 eV showing a striking response up to 100 μm has been demonstrated, whereas without the hot-carrier effect the threshold should correspond to ~3.9 μm. A detectivity of 7.8×109 cm Hz1/2/W at 22 μm has been measured at 80 K." @default.
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- W2015657137 date "2013-09-01" @default.
- W2015657137 modified "2023-09-27" @default.
- W2015657137 title "Hot-carrier photodetector beyond spectral limit" @default.
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- W2015657137 doi "https://doi.org/10.1109/ipcon.2013.6656580" @default.
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