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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Article number918580
Pages (from-to)672-675
Number of pages4
JournalIEEE Journal of Quantum Electronics
Volume37
Issue number5
DOIs
Publication statusPublished - 1 May 2001
Externally publishedYes

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