Abstract

Strain-balanced InAs/InAs1-xSbx type-II superlattices (SLs) on GaSb substrates with 0.27 x 0.33 were grown by molecular beam epitaxy and demonstrated photoluminescence (PL) up to 11.1 m. The calculated SL bandgap energies agree with the PL peaks to within 5 meV for long-wavelength infrared samples (9.5, 9.9, and 11.1 m) and to within 9 meV for a mid-wavelength infrared sample (5.9 m). X-ray diffraction measurements reveal average SL mismatches of less than 0.2, and the PL full-width-at-half-maximums increase with the mismatch, confirming the importance of strain-balancing for material quality.

Original languageEnglish (US)
Article number02B107
JournalJournal of Vacuum Science and Technology B:Nanotechnology and Microelectronics
Volume30
Issue number2
DOIs
StatePublished - 2012

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Superlattices
Molecular beam epitaxy
superlattices
Photoluminescence
molecular beam epitaxy
photoluminescence
Substrates
Infrared radiation
Wavelength
Full width at half maximum
wavelengths
Energy gap
X ray diffraction
diffraction
indium arsenide
x rays
energy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Strain-balanced InAs/InAs1-xSbx type-II superlattices grown by molecular beam epitaxy on GaSb substrates. / Steenbergen, Elizabeth H.; Nunna, Kalyan; Ouyang, Lu; Ullrich, Bruno; Huffaker, Diana L.; Smith, David; Zhang, Yong-Hang.

In: Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics, Vol. 30, No. 2, 02B107, 2012.

Research output: Contribution to journalArticle

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abstract = "Strain-balanced InAs/InAs1-xSbx type-II superlattices (SLs) on GaSb substrates with 0.27 x 0.33 were grown by molecular beam epitaxy and demonstrated photoluminescence (PL) up to 11.1 m. The calculated SL bandgap energies agree with the PL peaks to within 5 meV for long-wavelength infrared samples (9.5, 9.9, and 11.1 m) and to within 9 meV for a mid-wavelength infrared sample (5.9 m). X-ray diffraction measurements reveal average SL mismatches of less than 0.2, and the PL full-width-at-half-maximums increase with the mismatch, confirming the importance of strain-balancing for material quality.",
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AU - Steenbergen, Elizabeth H.

AU - Nunna, Kalyan

AU - Ouyang, Lu

AU - Ullrich, Bruno

AU - Huffaker, Diana L.

AU - Smith, David

AU - Zhang, Yong-Hang

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