Study of Physical Characteristics of Zinc Selenide Thin Film

H N Desai, J M Dhimmar, B P Modi
2015 International Journal of Engineering Research and  
Zinc Selenide (ZnSe) film has been grown on well cleaned glass substrate by thermal evaporation technique under vacuum (5 x 10 -6 mbar). The physical characteristics of ZnSe film such as compositional, structural and optical properties were examined using energy dispersive X-ray analysis (EDAX), X-ray diffractometer and UV-Visible spectrophotometer respectively. The EDAX study shows that the ZnSe film is almost stoichiometric. Polycrystalline nature of the film was observed from XRD analysis.
more » ... is revealed that deposited film has zinc blende system along with some amorphous phase present in ZnSe film and a preferred (3 1 1) orientation. The grain size and lattice strain have been calculated by Williamson-Hall (W-H) plot.Other relevant structural parameters (dislocation density and internal stress) have been calculated. The value of corrected lattice parameter has been determined using Nelson-Riley error function. The optical parameters (optical band gap, Urbach energy and extinction coefficient) have been found for the wavelength region (300 nm -1100 nm) by absorption spectra.
doi:10.17577/ijertv4is051123 fatcat:bn4of7wy45hcdi5tnlze2rrnry