Skip to main navigation Skip to search Skip to main content

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 Wu Ju
  • , Jung Wook Min
  • , Seokjin Kang
  • , No Soung Myoung
  • , Sang Youp Yim
  • , Yong Ryun Jo
  • , Bong Joong Kim
  • , Yong Tak Lee
  • *Corresponding author for this work
  • National Renewable Energy Laboratory
  • Indian Institute of Space Science and Technology
  • Gwangju Institute of Science and Technology

Research output: Contribution to journalJournal articlepeer-review

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 languageEnglish
Pages (from-to)1622-1626
Number of pages5
JournalCurrent Applied Physics
Volume16
Issue number12
DOIs
StatePublished - 2016.12.1

Keywords

  • Epitaxy growth
  • III-V semiconductors
  • Molecular beam epitaxy
  • Nanowire
  • Optical characterization

Fingerprint

Dive into the research topics of 'Optical properties and carrier dynamics of GaAs/GaInAs multiple-quantum-well shell grown on GaAs nanowire by molecular beam epitaxy'. Together they form a unique fingerprint.

Cite this