InGaAs/AlAs Metamorphic Asymmetric Spacer Tunnel (mASPAT) Diodes on GaAs Substrate for Microwave/millimetre-wave Applications

Abdelmajid Salhi, James Sexton, Saad G. Muttlak, Omar Abdulwahid, Mohamed Missous

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

A novel, metamorphic Asymmetric Spacer Tunnel (mASPAT) diode structure was grown by solid source Molecular Beam Epitaxy (MBE) system. A metamorphic HEMT (mHEMT) structure was used to optimize the quality of the grown material. Photoluminescence, X-Ray diffraction and Hall Effect were used to assess the material quality. Following the growth of the mASPAT structure using the optimal growth condition, diodes with different mesa sizes were fabricated and characterised. The I-V characteristics of the fabricated devices show asymmetric behavior as expected. The extracted junction resistance, curvature coefficient and the leakage current at -1V show the potential use of the fabricated mASPAT devices on GaAs as a low-cost and high-volume microwave and millimeter-waves detectors.

Original languageEnglish
Title of host publication12th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728129914
DOIs
Publication statusPublished - Aug 2019
Externally publishedYes
Event12th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2019 - London, United Kingdom
Duration: 20 Aug 201922 Aug 2019

Publication series

Name12th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2019

Conference

Conference12th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2019
Country/TerritoryUnited Kingdom
CityLondon
Period20/08/1922/08/19

Keywords

  • mASPAT
  • metamorphic
  • tunneling diode

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