Numerical modeling of detection in contacts of bismuth-antimony alloy with different materials: influence of contact area and material factor

Diode detectors (DDs) are widely used in electronic information and communication systems. In this paper, the numerical modeling of the electrical potential distribution and current passing in contacts of a normal metal or a superconductor with a bismuth-antimony (Bi Sb) semiconductor alloy is condu...

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Autor principal: Cherner, Iacov
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Lenguaje:EN
Publicado: D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2014
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Acceso en línea:https://doaj.org/article/5654460679504e8e9e86d12f953863f8
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spelling oai:doaj.org-article:5654460679504e8e9e86d12f953863f82021-11-21T11:59:04ZNumerical modeling of detection in contacts of bismuth-antimony alloy with different materials: influence of contact area and material factor 538.91+544.6+621.315.592537-63651810-648Xhttps://doaj.org/article/5654460679504e8e9e86d12f953863f82014-12-01T00:00:00Zhttps://mjps.nanotech.md/archive/2014/article/39447https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365Diode detectors (DDs) are widely used in electronic information and communication systems. In this paper, the numerical modeling of the electrical potential distribution and current passing in contacts of a normal metal or a superconductor with a bismuth-antimony (Bi Sb) semiconductor alloy is conducted. The possibilities of designing DDs based on these contacts to operate at the liquid helium temperature (T) of 4.2 K are explored. The dependences of current responsivity (CR), voltage responsivity (VR), and noise equivalent power (NEP) on the signal frequency (f) are analyzed. The role of the contact area is discussed. The contacts of Bi Sb with different materials are analyzed. The obtained results are compared to the literature data. Both DDs operating at the temperature of liquid nitrogen (T = 77.4 K) and liquid helium are considered. Comparison with existent literature data shows that the proposed DDs can be 10 100 times better. The physical reasons for these advantages are discussed. It is shown that the unique properties of Bi Sb alloys, particularly of a Bi0.88Sb0.12 alloy, make these alloys promising materials for cryoelectronicsCherner, IacovD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 13, Iss 3-4, Pp 222-228 (2014)
institution DOAJ
collection DOAJ
language EN
topic Physics
QC1-999
Electronics
TK7800-8360
spellingShingle Physics
QC1-999
Electronics
TK7800-8360
Cherner, Iacov
Numerical modeling of detection in contacts of bismuth-antimony alloy with different materials: influence of contact area and material factor
description Diode detectors (DDs) are widely used in electronic information and communication systems. In this paper, the numerical modeling of the electrical potential distribution and current passing in contacts of a normal metal or a superconductor with a bismuth-antimony (Bi Sb) semiconductor alloy is conducted. The possibilities of designing DDs based on these contacts to operate at the liquid helium temperature (T) of 4.2 K are explored. The dependences of current responsivity (CR), voltage responsivity (VR), and noise equivalent power (NEP) on the signal frequency (f) are analyzed. The role of the contact area is discussed. The contacts of Bi Sb with different materials are analyzed. The obtained results are compared to the literature data. Both DDs operating at the temperature of liquid nitrogen (T = 77.4 K) and liquid helium are considered. Comparison with existent literature data shows that the proposed DDs can be 10 100 times better. The physical reasons for these advantages are discussed. It is shown that the unique properties of Bi Sb alloys, particularly of a Bi0.88Sb0.12 alloy, make these alloys promising materials for cryoelectronics
format article
author Cherner, Iacov
author_facet Cherner, Iacov
author_sort Cherner, Iacov
title Numerical modeling of detection in contacts of bismuth-antimony alloy with different materials: influence of contact area and material factor
title_short Numerical modeling of detection in contacts of bismuth-antimony alloy with different materials: influence of contact area and material factor
title_full Numerical modeling of detection in contacts of bismuth-antimony alloy with different materials: influence of contact area and material factor
title_fullStr Numerical modeling of detection in contacts of bismuth-antimony alloy with different materials: influence of contact area and material factor
title_full_unstemmed Numerical modeling of detection in contacts of bismuth-antimony alloy with different materials: influence of contact area and material factor
title_sort numerical modeling of detection in contacts of bismuth-antimony alloy with different materials: influence of contact area and material factor
publisher D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate 2014
url https://doaj.org/article/5654460679504e8e9e86d12f953863f8
work_keys_str_mv AT cherneriacov numericalmodelingofdetectionincontactsofbismuthantimonyalloywithdifferentmaterialsinfluenceofcontactareaandmaterialfactor
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