Modelling the Spectral Reflectances of Sol-Gel Tin Doped Indium Oxide and Aluminum Doped Zinc Oxide Coatings

摘要

The spectral normal hemispherical reflectances of tin doped indium oxide (ITO) and aluminum doped zinc oxide (AZO) coatings were measured and analyzed in the near infrared spectral region. The plain Drude model is the most simple model which can be used. However, it can describe the dielectric behavior of metals and semiconductors quite well at wavelengths exceeding the plasma edge if the degree of crystallinity and the amount of free charge carriers is high enough. The reflectances of conventional Sol-Gel ITO coatings with one to four layers and conventional Sol-Gel AZO coatings with seven to eleven layers were examined. The fit parameters which were obtained by modelling the measured reflectances are consistent and in good agreement with those found in literature.