Figure 3.

Optical properties of the (Sn, Fe)-codoped films. (a) Transmittance spectra of x% Sn- and 5% Fe-doped In2O3 films. (b) Corresponding plot of (αhν)2 versus . The intercept of linear extrapolation gives the optical band gap.

Zhou et al. Nanoscale Research Letters 2012 7:661   doi:10.1186/1556-276X-7-661
Download authors' original image