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 |
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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). |
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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 fullname: Barve, A.V. organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM – sequence: 2 givenname: S.Y. surname: Shah fullname: Shah, S.Y. organization: Dept. of Electr. Eng., Indian Inst. of Technol., Mumbai – sequence: 3 givenname: J. surname: Shao fullname: Shao, J. organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM – sequence: 4 givenname: T.E. surname: Vandervelde fullname: Vandervelde, T.E. organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM – sequence: 5 givenname: R. surname: Shenoi fullname: Shenoi, R. organization: Dept of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM – sequence: 6 givenname: W.-Y. 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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PublicationTitle | LEOS 2008 - 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society |
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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... |
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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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