grown by Pulsed Laser Deposition

In this thesis, a-plane ZnO/ZnMgO multiple quantum wells were grown on r-plane sapphire by pulsed laser deposition for investigation. We utilized several methods including photoluminescence (PL), polarized absorption spectra, and micro photoluminescence (μ-PL) to investigate the optical characteristics of our samples. Energy dispersive spectrometer revealed the magnesium concentration of barrier layer is 20%. Transmission electronic microscopy was further carried out to determin