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High detectivity InGaAsSb pin infrared photodetector for blood glucose sensing
Journal article   Peer reviewed

High detectivity InGaAsSb pin infrared photodetector for blood glucose sensing

B L Carter, E Shaw, J T Olesberg, W K Chan, T C Hasenberg and M E Flatte
Electronics letters, Vol.36(15), pp.1301-1303
07/20/2000
DOI: 10.1049/el:20000956

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Abstract

A molecular beam epitaxy grown GalnAsSb pin photodetector lattice matched to a GaSb substrate is reported. The mesa type detector has high responsivity in the 1.4 to 2.4 mu m wavelength range with -0.3V bias, 40 mu A dark current for a 1mm diameter detector and the highest detectivity D* of 2.6 x 10(10)cm.Hz(1/2)/W reported for a GaInAsSb detector. The measured responsivity compares well with k.p calculations.
Engineering Technology Engineering, Electrical & Electronic Science & Technology

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