We report the growth and characterization of Cu nanoparticles thin
film of on glass substrate by pulse laser deposition method. The Cu
thin film prepared with different energy 50, 60, 70, and 80 mJ. The
energy effect on the morphological, structural and optical properties
were studied by AFM, XRD and UV-Visible spectrophotometer.
Surface topography studied by atomic force microscopy revealed
narrowed size distributions, with particle sizes ranging from 65.8 to
90.09 nm. The results showed the Average Gran Size increased with
increasing energy and RMS roughness increased with increasing
energy. X-ray diffraction showed nanostructure phase With ( 2? =
43.297, 50.433 degree). The results show that by increasing thickness,
the copper films crystallinity in (111) direction increases. Optical
properties measurements showed transformation from metallic
properties of bulk Cu to semiconductor properties when formed by
sort of nanostructure evidenced by the formation of optical energy
gap about (3.45 to 3.89 eV) with different conditions. When the
thickness of samples is increased the crystallinity and the mean grain
size improved.