Structural and optical characteristic features of RF sputtered CdS/ZnO thin films |
FESEM micrographs of as-deposited and thermally annealed CdS/ZnO thin films as a function of temperatures: (a) as-deposited film, (b) annealed film at 373 K, (c) annealed film at 473 K, and (d) annealed film at 573 K. |