In:
Applied Physics Letters, AIP Publishing, Vol. 95, No. 2 ( 2009-07-13)
Kurzfassung:
We describe a long wavelength infrared detector where an InAs/GaSb superlattice absorber is surrounded by a pair of electron-blocking and hole-blocking unipolar barriers. A 9.9 μm cutoff device without antireflection coating based on this complementary barrier infrared detector design exhibits a responsivity of 1.5 A/W and a dark current density of 0.99×10−5 A/cm2 at 77 K under 0.2 V bias. The detector reaches 300 K background limited infrared photodetection (BLIP) operation at 87 K, with a black-body BLIP D∗ value of 1.1×1011 cm Hz1/2/W for f/2 optics under 0.2 V bias.
Materialart:
Online-Ressource
ISSN:
0003-6951
,
1077-3118
Sprache:
Englisch
Verlag:
AIP Publishing
Publikationsdatum:
2009
ZDB Id:
211245-0
ZDB Id:
1469436-0
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