Table 1: Crystallite size and optical band-gap energy ( ) for Z1F, Z2F, Z3F and Z4F samples.

SamplesZnO sizea (nm)ZnFe2O4 sizea (nm) of ZnO phase (eV)

Z1F51.210.3
Z2F42.720.6
Z3F42.720.6
Z4F36.620.7

Crystallite size: calculated using Scherrer’s equation.