
Spatial stress distribution and optical properties of GaN films grown on convex shape-patterned sapphire substrate by metalorganic chemical vapor deposition
Keywords: 71.55.Eq; 78.30 Fs; 78.47jd; 78.55Cr; 81.15.GhGaN; Metalorganic chemical vapor deposition; Convex-shaped patterned sapphire; Micro-Raman scattering; Micro-photoluminescence