Molecular beam epitaxy growth of antimony-based mid-infrared interband cascade photodetectors

Zhao Bing Tian, Ted Schuler-Sandy, Sanjay Krishna, Dinghao Tang, David Smith

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The molecular beam epitaxial growth and optimization of antimony-based interband cascade photodetectors, on both GaSb and GaAs substrates, are presented. Material characterization techniques, including X-ray diffraction, atomic force microscopy, and cross-sectional transmission electron microscopy, are used to evaluate the epitaxial material quality. This work has led to the demonstration of mid-infrared photodetectors operational up to a record-high 450 K, and a dark current density as low as 1.10×10-7 A/cm2 at 150 K. The results also suggest that further improved material quality and device performance can be expected via optimization of growth parameters.

Original languageEnglish (US)
Pages (from-to)364-368
Number of pages5
JournalJournal of Crystal Growth
Volume425
DOIs
StatePublished - Jun 20 2015

Fingerprint

Antimony
Photodetectors
antimony
Molecular beam epitaxy
photometers
cascades
molecular beam epitaxy
Infrared radiation
optimization
dark current
molecular beams
Molecular beams
Dark currents
atomic force microscopy
current density
Epitaxial growth
transmission electron microscopy
Atomic force microscopy
Current density
Demonstrations

Keywords

  • A3. AlSb/InAs/GaSb quantum wells
  • A3. Molecular beam epitaxy
  • A3. Type-II superlattices
  • B3. Infrared photodetectors

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Molecular beam epitaxy growth of antimony-based mid-infrared interband cascade photodetectors. / Tian, Zhao Bing; Schuler-Sandy, Ted; Krishna, Sanjay; Tang, Dinghao; Smith, David.

In: Journal of Crystal Growth, Vol. 425, 20.06.2015, p. 364-368.

Research output: Contribution to journalArticle

Tian, Zhao Bing ; Schuler-Sandy, Ted ; Krishna, Sanjay ; Tang, Dinghao ; Smith, David. / Molecular beam epitaxy growth of antimony-based mid-infrared interband cascade photodetectors. In: Journal of Crystal Growth. 2015 ; Vol. 425. pp. 364-368.
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