TiO2 Thin Films Doped with Au and Ag Nanoparticles for Improvement of Optical Properties

For increase absorption efficiency in a solar cell system, we used TiO2 thin films doped with Au or Agnanoparticles by LPD Sputtering method. We prepare two different samples of thin films (TiO2-Au, TiO2-Ag). Inpreparing samples we used nanoparticles with different grain size in the range of 1-50nm to increase the light absorptionby cells. The UV–vis spectra were obtained by UV–Visible spectrophotometer to determine absorption, band gapvariation and conducting of thin films. We used XRD to characterize the crystalline structure of the films. Also, surfacemorphologies of the films were observed by SEM. Results show a high absorption efficiency of our samples to compareto other studies.

کلیدواژه ها:

Titanium dioxide ، Anatase ، rutile ، LPD Sputtering ، Absorption efficiency