Reduction in dark current using resonant tunneling barrier in dots-in-a-well long wavelength infrared photodetectors

Reduction of dark current in DWELL photodetectors using resonant tunneling barriers is presented. At 77 K, the dark current is reduced by a factor of 1000 in positive bias. The peak detectivity is 4 times 10 9 cm.Hz 1/2 W -1 (V b = -1.1 V, 77 K at lambda peak = 11 mum).

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Published in:LEOS 2008 - 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society pp. 360 - 361
Main Authors: Barve, A.V., Shah, S.Y., Shao, J., Vandervelde, T.E., Shenoi, R., Jang, W.-Y., Krishna, S.
Format: Conference Proceeding
Language:English
Published: IEEE 01-11-2008
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Abstract Reduction of dark current in DWELL photodetectors using resonant tunneling barriers is presented. At 77 K, the dark current is reduced by a factor of 1000 in positive bias. The peak detectivity is 4 times 10 9 cm.Hz 1/2 W -1 (V b = -1.1 V, 77 K at lambda peak = 11 mum).
AbstractList Reduction of dark current in DWELL photodetectors using resonant tunneling barriers is presented. At 77 K, the dark current is reduced by a factor of 1000 in positive bias. The peak detectivity is 4 times 10 9 cm.Hz 1/2 W -1 (V b = -1.1 V, 77 K at lambda peak = 11 mum).
Author Barve, A.V.
Shah, S.Y.
Jang, W.-Y.
Shao, J.
Krishna, S.
Vandervelde, T.E.
Shenoi, R.
Author_xml – sequence: 1
  givenname: A.V.
  surname: Barve
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  organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM
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  givenname: S.Y.
  surname: Shah
  fullname: Shah, S.Y.
  organization: Dept. of Electr. Eng., Indian Inst. of Technol., Mumbai
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  surname: Shao
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  organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM
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  surname: Vandervelde
  fullname: Vandervelde, T.E.
  organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM
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  surname: Shenoi
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  organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM
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  surname: Jang
  fullname: Jang, W.-Y.
  organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM
– sequence: 7
  givenname: S.
  surname: Krishna
  fullname: Krishna, S.
  organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM
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Snippet Reduction of dark current in DWELL photodetectors using resonant tunneling barriers is presented. At 77 K, the dark current is reduced by a factor of 1000 in...
SourceID ieee
SourceType Publisher
StartPage 360
SubjectTerms Carrier confinement
Dark current
Electrons
Gallium arsenide
Infrared detectors
Photodetectors
Physics
Quantum dots
Resonant tunneling devices
Temperature
Title Reduction in dark current using resonant tunneling barrier in dots-in-a-well long wavelength infrared photodetectors
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