Exciton Footprint of Self-assembled AlGaAs Quantum Dots in Core-Shell Nanowires

@article{Fontana2014ExcitonFO,
  title={Exciton Footprint of Self-assembled AlGaAs Quantum Dots in Core-Shell Nanowires},
  author={Yannik Fontana and Pierre Corfdir and Barbara Van Hattem and Eleonora Russo-Averchi and Martin Heiss and Samuel Sonderegger and C{\'e}sar Mag{\'e}n and Jordi Arbiol and Richard T. Phillips and Anna Fontcuberta i Morral},
  journal={Physical Review B},
  year={2014},
  volume={90},
  pages={075307}
}
Quantum-dot-in-nanowire systems constitute building blocks for advanced photonics and sensing applications. The electronic symmetry of the emitters impacts their function capabilities. Here we study the fine structure of gallium-rich quantum dots nested in the shell of GaAs-Al-0.51 Ga-0.49 As core-shell nanowires. We used optical spectroscopy to resolve the splitting resulting from the exchange terms and extract the main parameters of the emitters. Our results indicate that the quantum dots can… 

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