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Tuning Band Energies in a Combined Axial and Radial GaAs/GaP Heterostructure

  • Yuda Wang (a1), Parveen Kumar (a1), Leigh Morris Smith (a1), Howard E. Jackson (a1), Jan M. Yarrison-Rice (a2), Craig Pryor (a3), Jung-Hyun Kang (a4), Qiang Gao (a4), Hark Hoe Tan (a4) and Chennupati Jagadish (a4)...

Abstract

We use Raman scattering to study the spatially-resolved strain and stress in a complex zinc blende GaAs/GaP heterostructured nanowire which contains both axial and radial interfaces. The nanowires are grown by metal-organic chemical vapor deposition in the [111] direction with Au nano particles as catalysts, High spatial resolution Raman scans along the nanowires show the GaAs/GaP interface is clearly identifiable. We interpret the phonon energy shifts in each material as one approaches the interface.

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Keywords

Tuning Band Energies in a Combined Axial and Radial GaAs/GaP Heterostructure

  • Yuda Wang (a1), Parveen Kumar (a1), Leigh Morris Smith (a1), Howard E. Jackson (a1), Jan M. Yarrison-Rice (a2), Craig Pryor (a3), Jung-Hyun Kang (a4), Qiang Gao (a4), Hark Hoe Tan (a4) and Chennupati Jagadish (a4)...

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