A-plane gallium nitride (GaN) layers were grown on γ-LiAlO 2 (3 0 2) by metalorganic chemical vapor deposition (MOCVD). The structural properties of the layers were characterized by high resolution X-ray diffraction (HRXRD). The structural and optical properties of a-plane GaN films are studied. The growth conditions with V/III ratios of 143 and 300 mbar may help produce a-GaN film with high quality and in a more isotropic shape. The polarization ratio of the near band emission of sample A (81.13%) was higher than sample B (54.65%), due to the improved crystallinity.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Inorganic Chemistry
- Materials Chemistry