NDLI: Very long wavelength infrared focal plane arrays with 50% cutoff wavelength based on type-II InAs/GaSb superlattice

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Very long wavelength infrared focal plane arrays with 50% cutoff wavelength based on type-II InAs/GaSb superlattice

Content Provider	Scilit
Author	Han, Xi Xiang, Wei Hao, Hong-Yue Jiang, Dong-Wei Sun, Yao-Yao Wang, Guo-Wei Xu, Ying-Qiang Niu, Zhi-Chuan
Copyright Year	2017
Description	Journal: Chinese Physics B A very long wavelength infrared(VLWIR) focal plane array based on InAs/GaSb type-II super-lattices is demonstrated on a GaSb substrate. A hetero-structure photodiode was grown with a 50% cut-off wavelength of 15.2 m, at 77 K. A 320×256 VLWIR focal plane array with this design was fabricated and characterized. The peak quantum efficiency without an antireflective coating was 25.74% at the reverse bias voltage of −20 mV, yielding a peak specific detectivity of cmHz $W^{−1}$. The operability and the uniformity of response were 89% and 83.17%. The noise-equivalent temperature difference at 65 K exhibited a minimum at 21.4 mK, corresponding to an average value of 56.3 mK.
Related Links	http://iopscience.iop.org/article/10.1088/1674-1056/26/1/018505/pdf
ISSN	16741056
e-ISSN	20583834
DOI	10.1088/1674-1056/26/1/018505
Journal	Chinese Physics B
Issue Number	1
Volume Number	26
Language	English
Publisher	IOP Publishing
Publisher Date	2017-01-01
Access Restriction	Open
Subject Keyword	Journal: Chinese Physics B Long Wavelength Infrared Quantum Efficiency Type Ii Inas/gasb Focal Plane Array
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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