Structural and optical properties of non-polar A-plane ZnO films grown on R-plane sapphire substrates by plasma-assisted molecular-beam epitaxy
Non-polar, A-plane (112¯ 0) ZnO films are epitaxially grown on R-plane (11¯ 02) Al2O3
substrates by plasma-assisted molecular-beam epitaxy and structural and optical properties
are investigated. Epitaxial relationships between ZnO films and Al2O3 substrates are
determined to be ZnO (112¯ 0)//Al2O3 (11¯ 20), ZnO [1¯ 100]//Al2O3 [112¯ 0]. The misfit is
relaxed by the regularly spaced misfit dislocations. Structural properties are anisotropic and
surfaces of films show stripes running along the ZnO [0001] direction. Full width at half …
substrates by plasma-assisted molecular-beam epitaxy and structural and optical properties
are investigated. Epitaxial relationships between ZnO films and Al2O3 substrates are
determined to be ZnO (112¯ 0)//Al2O3 (11¯ 20), ZnO [1¯ 100]//Al2O3 [112¯ 0]. The misfit is
relaxed by the regularly spaced misfit dislocations. Structural properties are anisotropic and
surfaces of films show stripes running along the ZnO [0001] direction. Full width at half …
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