Crystallite growth and optical properties of cadmium oxide thin films annealed at various temperatures for various durations

摘要

Highlights?The growth behavior of CdO crystallites in the thin films was investigated.?The transmission spectra showed the bandgap energy of CdO thin films decreased.?The activation energy of CdO crystallite growth in the thin films is 13.04?kJ/mol.?All CdO films have an average optical transparency of nearly 80%.AbstractThe crystallite growth and optical properties of cadmium oxide (CdO) thin films annealed at various temperatures and for various durations have been investigated using grazing incident X-ray diffraction (GID), high-resolution transmittance electron microscopy (HR-TEM), selected area electron diffraction, and ultraviolet-visible spectrometry. All the thin films were annealed between 573 and 773?K for 10 to 60?min, respectively. GID results showed that all thin films contain only a single phase of CdO with (111) preferential orientation. The