(Bi2O ????? ????? ??? ??????? ????????? ???????? ??????? ??????

Authors

  • ???? ???? ????
  • ??? ???? ??? ???????

Abstract

In this research , the influence of different thickness (250,350 and 450 ±20 nm) on the structural and optical properties have been investigated on the thin films of (Bi2O3) which deposited on glass substrates using thermal evaporation technique under vacuum , ( XRD) is used to characterize the structural properties, the results indicate that all films prepared have polycrystalline structure with preferentially oriented in the [ 201] with tetragonal structure, The optical analyses shows that these films have high absorption coefficient ( ? > 104 cm-1 ) and direct energy gap which increase with the increase of film thickness , Also optical measurements shows that , the values of absorption coefficient , refractive index , extinction coefficient , the dielectric constants with both parts real and imaginary Optical Conductivity are change with on film thickness for the wavelength in the range ( 300 – 1100 nm ) .

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Published

2020-09-20

How to Cite

???? ???? ????, & ??? ???? ??? ???????. (2020). (Bi2O ????? ????? ??? ??????? ????????? ???????? ??????? ?????? . Mustansiriyah Journal for Sciences and Education, 17(5), 75-88. Retrieved from https://edumag.uomustansiriyah.edu.iq/index.php/mjse/article/view/45

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Section

Research Article