Rights statement: Copyright 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, 106 (20), 2015 and may be found at http://scitation.aip.org/content/aip/journal/apl/106/20/10.1063/1.4921468
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Short-wave infrared barriode detectors using InGaAsSb absorption material lattice matched to GaSb
AU - Craig, Adam
AU - Jain, M.
AU - Wicks, G.
AU - Golding, T.
AU - Hossain, K.
AU - McEwan, K.
AU - Howle, C.
AU - Percy, B.
AU - Marshall, Andrew
N1 - Copyright 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, 106 (20), 2015 and may be found at http://scitation.aip.org/content/aip/journal/apl/106/20/10.1063/1.4921468
PY - 2015/5/20
Y1 - 2015/5/20
N2 - Short-wave infrared barriode detectors were grown by molecular beam epitaxy. An absorption layer composition of In0.28Ga0.72As0.25Sb0.75 allowed for lattice matching to GaSb and cut-off wavelengths of 2.9 μm at 250 K and 3.0 μm at room temperature. Arrhenius plots of the dark current density showed diffusion limited dark currents approaching those expected for optimized HgCdTe-based detectors. Specific detectivity figures of around 7×1010 Jones and 1×1010 Jones were calculated, for 240 K and room temperature, respectively. Significantly, these devices could support focal plane arrays working at higher operating temperatures.
AB - Short-wave infrared barriode detectors were grown by molecular beam epitaxy. An absorption layer composition of In0.28Ga0.72As0.25Sb0.75 allowed for lattice matching to GaSb and cut-off wavelengths of 2.9 μm at 250 K and 3.0 μm at room temperature. Arrhenius plots of the dark current density showed diffusion limited dark currents approaching those expected for optimized HgCdTe-based detectors. Specific detectivity figures of around 7×1010 Jones and 1×1010 Jones were calculated, for 240 K and room temperature, respectively. Significantly, these devices could support focal plane arrays working at higher operating temperatures.
U2 - 10.1063/1.4921468
DO - 10.1063/1.4921468
M3 - Journal article
VL - 106
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 20
M1 - 201103
ER -