AIP Advances (Dec 2018)

Mid-infrared emissions from In(Ga)As quantum wells grown on GaP/Si(001) substrates

  • Y. Gu,
  • W. G. Huang,
  • J. Zhang,
  • X. Y. Chen,
  • Y. J. Ma,
  • H. Huang,
  • G. X. He,
  • Y. G. Zhang

DOI
https://doi.org/10.1063/1.5051062
Journal volume & issue
Vol. 8, no. 12
pp. 125318 – 125318-6

Abstract

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This work reports on the approach of metamorphic In(Ga)As quantum wells on GaP/Si(001) substrates for Si-based mid-infrared applications. Metamorphic InP and In0.83Al0.17As templates are grown on Si, and room temperature photoluminescence emissions at 2.1 μm and 2.6 μm have been demonstrated from InAs/In0.53Ga0.47As triangular quantum wells and InAs quantum wells on the templates, respectively. The surface root mean square roughness is 4-5 nm. The quantum wells act fully strained and the threading dislocation density is 107-108 cm-2 in the upper side of buffer.