Orientation, Substructure, and Optical Properties of Rutile Films

摘要

The orientation, optical properties, and substructure of rutile films prepared by thermal and pulsed photon-assisted oxidation of single-crystal Ti films were investigated by transmission electron microscopy, optical spectroscopy, and high-energy electron diffraction. Crystallographic orientation relationships at the contact between titanium and rutile were established, and the energy band gap was determined. It was shown that the luminescence intensity decreased significantly with decreasing grain size from the submi-crolevel to nanolevel.