Translate 
Abstract
Infrared optical properties of lead titanate (PbTiO3) thin films grown on Pt/Ti/SiO2/Si substrates are studied by infrared spectroscopic ellipsometry (IRSE) in the spectral range of 2.5-12.6 µm. The refractive index and extinction coefficient of PbTiO3 thin films are determined by fitting the IRSE data using a derived classical dielectric function formula. The refractive index decreases; on the contrary, the extinction coefficient increases as the wavelength increases. The absorption coefficient is greater than 1000 cm-1 for wavelengths over 11.7 µm, but very small and less than 100 cm-1 for wavelengths under 4.8 µm. The effective static ionic charge has also been derived, which is smaller than it would be in a purely ionic material for PbTiO3 thin films.
Published Version
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
