Carrier Scattering Approach to the Origins of Dark Current in Mid- and Far-Infrared (Terahertz) Quantum-Well Intersubband Photodetectors (QWIPs)

Nkaepe E.I. Etteh; Paul Harrison

doi:10.1109/3.918580

Carrier Scattering Approach to the Origins of Dark Current in Mid- and Far-Infrared (Terahertz) Quantum-Well Intersubband Photodetectors (QWIPs)

Nkaepe E.I. Etteh, Paul Harrison

University of Leeds

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

A carrier scattering approach is taken in an analysis of the affect on the dark current of extending the operating wavelength of conventional bound to continuum quantum-well intersubband photodetectors. It is found that both the sequential tunneling and the thermionic emission contributions to the dark current increase as the wavelength of the detector is extended from the mid- to far-infrared. Dark current designs rules are derived.

Original language	English
Article number	918580
Pages (from-to)	672-675
Number of pages	4
Journal	IEEE Journal of Quantum Electronics
Volume	37
Issue number	5
DOIs	https://doi.org/10.1109/3.918580
Publication status	Published - 1 May 2001
Externally published	Yes

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abstract = "A carrier scattering approach is taken in an analysis of the affect on the dark current of extending the operating wavelength of conventional bound to continuum quantum-well intersubband photodetectors. It is found that both the sequential tunneling and the thermionic emission contributions to the dark current increase as the wavelength of the detector is extended from the mid- to far-infrared. Dark current designs rules are derived.",

keywords = "Far-infrared, Infrared, Intersubband, Quantum wells, QWIP, Terahertz (THz)",

author = "Etteh, \{Nkaepe E.I.\} and Paul Harrison",

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AU - Harrison, Paul

N1 - Funding Information: Manuscript received July 24, 2000; revised January 25, 2001. This work was supported by the Institute of Microwaves and Photonics, the School of Electronic and Electrical Engineering, and The University of Leeds. The authors are with the Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, U.K. (e-mail: [email protected]). Publisher Item Identifier S 0018-9197(01)03482-0.

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AB - A carrier scattering approach is taken in an analysis of the affect on the dark current of extending the operating wavelength of conventional bound to continuum quantum-well intersubband photodetectors. It is found that both the sequential tunneling and the thermionic emission contributions to the dark current increase as the wavelength of the detector is extended from the mid- to far-infrared. Dark current designs rules are derived.

KW - Far-infrared

KW - Infrared

KW - Intersubband

KW - Quantum wells

KW - QWIP

KW - Terahertz (THz)

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DO - 10.1109/3.918580

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JO - IEEE Journal of Quantum Electronics

JF - IEEE Journal of Quantum Electronics

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M1 - 918580

ER -

Carrier Scattering Approach to the Origins of Dark Current in Mid- and Far-Infrared (Terahertz) Quantum-Well Intersubband Photodetectors (QWIPs)

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