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

NREL Publication Number

  • NREL/JA-5K00-67298

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