Band-to-band tunnelling (BTBT) in HgCdTe-based nBn detectors for LWIR applications

N. D. Akhavan; G. Jolley; G. Umana Membreno; J. Antoszewski; L. Faraone

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https://doi.org/10.1109/commad...

Article . 2014 . Peer-reviewed

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https://dx.doi.org/10.1109/com...

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Band-to-band tunnelling (BTBT) in HgCdTe-based nBn detectors for LWIR applications

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 2014Publisher:IEEEJournal:2014 Conference on Optoelectronic and Microelectronic Materials & Devices

Authors: N. D. Akhavan; G. Jolley; G. Umana Membreno; J. Antoszewski; L. Faraone;

doi: 10.1109/commad.2014.7038696

Band-to-band tunnelling (BTBT) in HgCdTe-based nBn detectors for LWIR applications

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Abstract

In this paper we present a theoretical study on the influence of band-to-band-tunnelling (BTBT) in HgCdTe-based nBn detectors for longwave infrared (LWIR) applications. Numerical modelling shows that BTBT strongly depends on the barrier parameters and degrades the detectivity of LWIR nBn detectors. Nevertheless, exploring alternative barrier materials or engineering designs which are able to suppress the BTBT in LWIR nBn detectors is necessary in order to achieve the ultimate performance of HgCdTe nBn detectors for LWIR applications.

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University of Western Australia
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