Reactive pulsed laser deposited N–C codoped TiO2 thin films

摘要: Abstract TiO2 is a large bandgap chemically stable oxide useful for several applications that involve photo-activated processes, including photocatalysis, photovoltaics, photoelectrolysis, etc. However, the band gap renders this material not very efficient absorber of solar spectrum. Various schemes cation and anion doping have been utilized reduce deficiency to certain extent. In paper we present results N–C codoping thin films deposited by reactive pulsed laser deposition technique. These were compared their optical structural properties with undoped, N doped C prepared same While all samples contained polycrystalline anatase phase, varying N2 CH4 partial pressures resulted in change lattice parameters due codoping. X-ray diffraction high-resolution scans show evidence incorporation into 2θ shift (101) reflections ionic radius C. was confirmed XPS analyses. Direct relationship between oxygen vacancies concentration established deconvolution peaks. Considerable reduction occurred measured using UV–vis diffuse reflectance spectroscopy. Results indeed method synthesis codoped as ~1.00 eV via successfully achieved.