The objective of this study is to assess the influence of nano-particle Fe2O3 thin film thickness on
some physical properties which were prepared by magnetron DC- sputtering on glass substrate at
room temperature. The structure was tested with X-Ray diffraction and it was to be amorphous
and to become single crystal with recognized peak in (003) after annealing at temperature 500oC.
The physical properties as a function of deposition parameters and then film thickness were
studied. The optical properties such as absorbance, energy gap and some optical constants are
measured and found that of about (3eV) energy gap.