AIP Advances (Dec 2015)

Epitaxial growth of M-plane GaN on ZnO micro-rods by plasma-assisted molecular beam epitaxy

  • Shuo-Ting You,
  • Ikai Lo,
  • Jenn-Kai Tsai,
  • Cheng-Hung Shih

DOI
https://doi.org/10.1063/1.4937132
Journal volume & issue
Vol. 5, no. 12
pp. 127201 – 127201-6

Abstract

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We have studied the GaN grown on ZnO micro-rods by plasma-assisted molecular beam epitaxy. From the analyses of GaN microstructure grown on non-polar M-plane ZnO surface ( 10 1 ̄ 0 ) by scanning transmission electron microscope, we found that the ZnGa2O4 compound was formed at the M-plane hetero-interface, which was confirmed by polarization-dependent photoluminescence. We demonstrated that the M-plane ZnO micro-rod surface can be used as an alternative substrate to grow high quality M-plane GaN epi-layers.