Figure 2
Sketch of an a-ZnO epitaxial layer on r-sapphire. (a) Mutual orientation of crystallographic cells of an a-ZnO heteroepitaxial layer on r-sapphire substrate. (b) Coincidence-site lattices of an interface ZnO(110) epitaxial layer on Al2O3() with anchors A1{ZnO[003]; Al2O3[]}, A2{ZnO[]; Al2O3[110]} of a-ZnO on r-sapphire. |