الفهرس 
Theoretical background and literature surveyOnly 14 pages are availabe for public view
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Abstract
N-(5-(2-oxo-2H-chromene -3-yl)-1,3,4-thiadizol-2-yl) benzamide (CThB) has
been investigated in the powder and thin film form . Thin films of CThB have
been prepared by a thermal evaporation technique. Structure and optical
properties of CThB have been measured under two separated influence; effect
of annealing and the other effect of UV- irradiation for reveal time.
Spectrophotometric measurements are used to measure transmittance and
reflectance at normal incidence of light at wavelength range 200 – 2500 nm.
This experimental data are used for calculating the absorption coefficient,
refractive index, dispersion parameters, and the optical band gap .
AC and DC measurements were performed on the bulk form with thickness
0.11 cm.