Depending the Structure and Optical Properties of Cadmium Telluride Films on the Doping process


  • Iman hameed khudayer University of Baghdad



The purpose of the present paper is to study the effect of doping by different materials on the structure and the optical properties of Cadmium Telluride films which prepared by rate deposition (4.21 nmn/sec) and thickness (≈ 200 nm) in vacuum by use thermal evaporation technique at a substrate temperature (300K), we are studying the effect of doping by different material (Antimony, Aluminum and Silver) on the structural1and optical2 properties of CdTe thin films. The structural properties of these films have been studied by using X-ray diffraction methods. The optical measurements indicated that Cadmium Telluride films have a direct optical energy gap (Egopt), and it decreases when we doped this films by different materials (Sb, Al and Ag) with the same ratio doping. The optical constants refractive index (n), extinction coefficient (k), absorption coefficient (α) and dielectric constants (r and i) were also studied.

Author Biography

Iman hameed khudayer, University of Baghdad



Physics of Semiconductor Device, Sze, S. M. and Kwok, K., John Wiley, and Sons Inc. New York, (2007).

Solid State Electronic Devices, S. Ben, Hall International, Inc , U.S.A (1990).

Journal of Nano- and Electronic Physics, Effect of Substrate Temperature on Structural and Optical Properties of Nanocrystalline CdTe Thin Films Deposited by Electron Beam Evaporation, M. Rigana Begam, N. Madhusudhana Rao, S. Kaleemulla, M. Shobana, N. Sai Krishna and M. Kuppan , Vol. 5 No 3 :3019-3022, (2013).

Thin Solid Films, Deposition of CdTe by spray pyrolysis, Boone JL, Doren TPV and Berry AK., 87:259-264(1982). DOI:

J Non-Cryst Solids, Characterization of CdTe thin films fabricated by close spaced sublimation technique and a study of Cu doping by ion exchange process, Shah NA, Ali A, Maqsood A.,355:1474-1478 ,(2009). DOI:

Appl Phys Lett, Radio-Frequency- Magnetron-Sputtered CdS/CdTe solar cells on soda-lime glass, Shao M, Fischer A, Grecu D, Jayamaha U, Bykov E, Contreras-Puente G, Bohn RG, Compaan AD., 69:3045-3047,(1996). DOI:

J Nano- Electron Phys, Effect of substrate temperature on structural and optical properties of nanocrystalline CdTe thin films deposited by electron beam evaporation, Begum MR, Rao NM, Kaleemulla S, Shobana M, Sai Krishna N, Kuppan M.,5/3:03019, (2013).

American J Mater Sci & Tech, Structural and surface studies of vacuum evaporated Cadmium Telluride thin films, Patel HS, Rathod JR, Patel KD, Pathak VM., 1:11 - 21, 2012.

Journal of Optoelectronics and Advanced Materials, on the Electrical and Optical Properties of nanocrystalline CdTe thin films, G. G. Rusu, Vol. 3, No. 4, 861 – 866, (2001).

S. A. Tawfiq " A study of optical and electrical properties of the cadmium stannate material using the Co - Evaporation method " PH.D. Thesis, Mustansiriya University (1996).

Journal of Al-Nahrain University, The Effect of Annealing on the Structural, Electrical and Optical Properties of CdTe Thin Films, A.S. A. Al-Ali, I. M. Ali and R.M.S.Al-Haddad, Vol.16 (2),93-98,(2013). DOI:

Bull. Mater. Sci., Structural, optical, photoluminescence, dielectric and electrical studies of vacuum evaporated CdTe thin films, R. K. Ziaul, M zulfequar and SH. Mohd. , Vol. 35, No. 2: 169–174, (2012). DOI:

M. M. A. ALHusseini, Study the optical, electrical and structural properties of silicon-based CdTe solar cell, University of Baghdad, Thesis (2013).

S. H. Fayyad, preparation and study the structural and optical properties of CdTe: Cu, University of Baghdad, Thesis (2015).

Advances in Condensed Matter Physics, Optical Properties of Al - and Sb -Doped CdTe Thin Films, A . A . J. A l - Douri , F. Y. Al-Shakily, M. F. A. Alias, and A. A. Alnajjar, Volume 2010, Article ID 947684,5pages,(2010). DOI:

D. Errandonea, A. Segura, D. Martinez-Garcia, V. Munoz, (2009), Hall effect and resistivity measurements in CdTe and ZnTe at high pressure:Electronic structure of impurities in the zincblende phase and the semi metallic or metallic character of the high DOI:

pressure phases, PhysicalReview B, 79, 125203




How to Cite

I. hameed khudayer, “Depending the Structure and Optical Properties of Cadmium Telluride Films on the Doping process”, MJS, vol. 29, no. 1, pp. 160–167, Oct. 2018.



Physical Sciences