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 language | American English |
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Pages (from-to) | 1622-1626 |
Number of pages | 5 |
Journal | Current Applied Physics |
Volume | 16 |
Issue number | 12 |
DOIs | |
State | Published - 2016 |
NREL Publication Number
- NREL/JA-5K00-67298
Keywords
- epitaxy growth
- III-V semiconductors
- molecular beam epitaxy
- nanowire
- optical characterization