Optical Properties of Al- and Sb-Doped CdTe Thin Films

Content Provider	Semantic Scholar
Author	Al-Douri, A. A. J. Al-Shakily, F. Y. Alias, M. F. A. Alnajjar, A. A.
Copyright Year	2014
Abstract	Nondoped and (Al, Sb)-doped CdTe thin films with 0.5, 1.5, and 2.5 wt.%, respectively, were deposited by thermal evaporation technique under vacuum onto Corning 7059 glass at substrate temperatures (Ts) of room temperature (RT) and 423 K. The optical properties of deposited CdTe films such as band gap, refractive index (n), extinction coefficient (ke), and dielectric coefficients were investigated as function of Al and Sb wt.% doping, respectively. The results showed that films have direct optical transition. Increasing Ts and the wt.% of both types of dopant, the band gap decrease but the optical is constant as n, ke and real and imaginary parts of the dielectric coefficient increase.
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Alternate Webpage(s)	http://downloads.hindawi.com/journals/acmp/2010/947684.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article