Optical Properties and Carrier Dynamics of GaAs/GaInAs Multiple-Quantum-Well Shell Grown on GaAs Nanowire by Molecular Beam Epitaxy

  • Kwangwook Park
  • , Sooraj Ravindran
  • , Gun Ju
  • , Jung-Wook Min
  • , Seokjin Kang
  • , NoSoung Myoung
  • , Sang-Youp Yim
  • , Yong-Ryun Jo
  • , Bong-Joong Kim
  • , Yong Lee

Research output: Contribution to journalArticlepeer-review

2 Scopus Citations

Abstract

GaAs/GaInAs multiple-quantum-well (MQW) shells having different GaInAs shell width formed on the surface of self-catalyzed GaAs core nanowires (NWs) are grown on (100) Si substrate using molecular beam epitaxy. The photoluminescence emission from GaAs/GaInAs MQW shells and the carrier lifetime could be varied by changing the width of GaInAs shell. Time-resolved photoluminescence measurements showed that the carrier lifetime had a fast and slow decay owing to the mixing of wurtzite and zinc-blende structures of the NWs. Furthermore, strain relaxation caused the carrier lifetime to decrease beyond a certain thickness of GaInAs quantum well shells.
Original languageAmerican English
Pages (from-to)1622-1626
Number of pages5
JournalCurrent Applied Physics
Volume16
Issue number12
DOIs
StatePublished - 2016

NLR Publication Number

  • NREL/JA-5K00-67298

Keywords

  • epitaxy growth
  • III-V semiconductors
  • molecular beam epitaxy
  • nanowire
  • optical characterization

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