The plot of variation of (ahm)1/2 against (hm), for all the TiO2 composition, is shown in Fig. 5. Each optical gap is estimated by extrapolating the linear region of the curves to (ahm)1/2 = 0.
The plot of variation of (ahm)1/2 against (hm), forall the TiO2 composition, is shown in Fig. 5. Each optical gap isestimated by extrapolating the linear region of the curves to(ahm)1/2 = 0.