Effect of barrier width on the performance of quantum well infrared photodetector

Steven K.H. Sim; H. C. Liu; A. Shen; M. Gao; Kevin F. Lee; M. Buchanan; Y. Ohno; H. Ohno; E. H. Li

doi:10.1016/S1350-4495(01)00067-6

Effect of barrier width on the performance of quantum well infrared photodetector

Steven K.H. Sim, H. C. Liu, A. Shen, M. Gao, Kevin F. Lee, M. Buchanan, Y. Ohno, H. Ohno, E. H. Li

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10 Citations (Scopus)

Abstract

We present a study on a set of AlGaAs/GaAs quantum well infrared photodetectors with various barrier widths from about 100 to 500 Å. At 77 K and for a large field-of-view (FOV) 300-K background operation, measured results on dark current, responsivity, and detectivity indicate that detectors with barrier widths larger than about 200 Å have similar performance. For 60-70 K and F/2 FOV, barriers need to be larger than about 300 Å to suppress inter-well tunneling.

Original language	English
Pages (from-to)	115-121
Number of pages	7
Journal	Infrared Physics and Technology
Volume	42
Issue number	3-5
DOIs	https://doi.org/10.1016/S1350-4495(01)00067-6
Publication status	Published - 2001 Jun

Keywords

Design parameter
Quantum well infrared photodetector

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/S1350-4495(01)00067-6

Cite this

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title = "Effect of barrier width on the performance of quantum well infrared photodetector",

abstract = "We present a study on a set of AlGaAs/GaAs quantum well infrared photodetectors with various barrier widths from about 100 to 500 {\AA}. At 77 K and for a large field-of-view (FOV) 300-K background operation, measured results on dark current, responsivity, and detectivity indicate that detectors with barrier widths larger than about 200 {\AA} have similar performance. For 60-70 K and F/2 FOV, barriers need to be larger than about 300 {\AA} to suppress inter-well tunneling.",

keywords = "Design parameter, Quantum well infrared photodetector",

author = "Sim, {Steven K.H.} and Liu, {H. C.} and A. Shen and M. Gao and Lee, {Kevin F.} and M. Buchanan and Y. Ohno and H. Ohno and Li, {E. H.}",

note = "Funding Information: The authors would like to thank John McCaffrey for transmission electron microscopy measurements, Stephen Rolfe for secondary ion mass spectroscopy measurements, and Phillip Chow-Chong and Paul Marshall for device fabrication. This work was supported in part by DND. ",

year = "2001",

month = jun,

doi = "10.1016/S1350-4495(01)00067-6",

language = "English",

volume = "42",

pages = "115--121",

journal = "Infrared Physics",

issn = "1350-4495",

publisher = "Elsevier",

number = "3-5",

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TY - JOUR

T1 - Effect of barrier width on the performance of quantum well infrared photodetector

AU - Sim, Steven K.H.

AU - Liu, H. C.

AU - Shen, A.

AU - Gao, M.

AU - Lee, Kevin F.

AU - Buchanan, M.

AU - Ohno, Y.

AU - Ohno, H.

AU - Li, E. H.

N1 - Funding Information: The authors would like to thank John McCaffrey for transmission electron microscopy measurements, Stephen Rolfe for secondary ion mass spectroscopy measurements, and Phillip Chow-Chong and Paul Marshall for device fabrication. This work was supported in part by DND.

PY - 2001/6

Y1 - 2001/6

N2 - We present a study on a set of AlGaAs/GaAs quantum well infrared photodetectors with various barrier widths from about 100 to 500 Å. At 77 K and for a large field-of-view (FOV) 300-K background operation, measured results on dark current, responsivity, and detectivity indicate that detectors with barrier widths larger than about 200 Å have similar performance. For 60-70 K and F/2 FOV, barriers need to be larger than about 300 Å to suppress inter-well tunneling.

AB - We present a study on a set of AlGaAs/GaAs quantum well infrared photodetectors with various barrier widths from about 100 to 500 Å. At 77 K and for a large field-of-view (FOV) 300-K background operation, measured results on dark current, responsivity, and detectivity indicate that detectors with barrier widths larger than about 200 Å have similar performance. For 60-70 K and F/2 FOV, barriers need to be larger than about 300 Å to suppress inter-well tunneling.

KW - Design parameter

KW - Quantum well infrared photodetector

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DO - 10.1016/S1350-4495(01)00067-6

M3 - Article

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VL - 42

SP - 115

EP - 121

JO - Infrared Physics

JF - Infrared Physics

SN - 1350-4495

IS - 3-5

ER -

Effect of barrier width on the performance of quantum well infrared photodetector

Abstract

Keywords

ASJC Scopus subject areas

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