Visible Light Photoelectrochemical Properties of N-Doped TiO₂ Nanorod Arrays from TiN

Figure 4

(a) Transmittance spectra of the N-doped TiO₂ NRAs annealed for different times at 330°C; (b) Tauc plot of (𝛼𝐸)^1/2 versus photon energy (𝐸=ℎ𝜈) for the N-doped TiO₂ NRAs annealed for different times at 330°C.

(a)

(b)