Abstract
Cubic InxGa1-xN films were successfully grown on GaAs(001) substrates by metalorganic chemical-vapor deposition. The values of A: content ranging from 0.10 to 0.24 obtained at different growth conditions were measured by double-crystal x-ray diffraction (XRD). The perpendicular and parallel elastic strain of the In0.2Ga0.8N layer, ε⊥ = 0.4% and ε∥y=-0.4% for GaN and ε ⊥ = 0.37% and ε ∥=-0.37% for InGaN, respectively, were derived using the XRD measurements. The inhomogeneous strain and the average grain size of the In0.2Ga0.8N/GaN films were also studied by XRD. Photoluminescence spectra were used to measure the optical characterization of the InxGa1-xN thin films with different In composition, and the near-band-edge emission dependence of cubic InxGa1-xN on the x value is nearly linear with In content x≤0.24.
Original language | British English |
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Pages (from-to) | 3711-3714 |
Number of pages | 4 |
Journal | Journal of Applied Physics |
Volume | 87 |
Issue number | 8 |
DOIs | |
State | Published - 15 Apr 2000 |