Type-II InAs/GaSb/AlSb superlattice-based heterojunction phototransistors: Back to the future

Abbas Haddadi, Arash Dehzangi, Romain Chevallier, Thomas Yang, Manijeh Razeghi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Most of reported HPTs in literatures are based on InGaAs compounds that cover NIR spectral region. However, InGaAs compounds provide limited cut-off wavelength tunability. In contrast, type-II superlattices (T2SLs) are a developing new material system with intrinsic advantages such as great flexibility in bandgap engineering, low growth and manufacturing cost, high-uniformity, auger recombination suppression, and high carrier effective mass that are becoming an attractive candidate for infrared detection and imaging from short-wavelength infrared to very long wavelength infrared regime. We present the recent advancements in T2SL-based heterojunction phototransistors in e-SWIR, MWIR and LWIR spectral ranges. A mid-wavelength infrared heterojunction phototransistor based on type-II InAs/AlSb/GaSb superlattices on GaSb substrate has been demonstrated. Then, we present the effect of vertical scaling on the optical and electrical performance of heterojunction phototransistors, where the performance of devices with different base width was compared as the base was scaled from 60 down to 40 nm.

Original languageEnglish (US)
Title of host publicationQuantum Sensing and Nano Electronics and Photonics XV
EditorsGiuseppe Leo, Gail J. Brown, Manijeh Razeghi, Jay S. Lewis
PublisherSPIE
Volume10540
ISBN (Electronic)9781510615656
DOIs
StatePublished - Jan 1 2018
EventQuantum Sensing and Nano Electronics and Photonics XV 2018 - San Francisco, United States
Duration: Jan 28 2018Feb 2 2018

Other

OtherQuantum Sensing and Nano Electronics and Photonics XV 2018
CountryUnited States
CitySan Francisco
Period1/28/182/2/18

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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