The effect of Cd substitution in PbS thin film on the optical properties | ||
| Journal of University of Anbar for Pure Science | ||
| Article 19, Volume 3, Issue 3, December 2009, Pages 59-68 PDF (651.53 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.37652/juaps.2009.15541 | ||
| Authors | ||
| Hamid S. Al-jumaili; Saeed .N.T.AL-Rashed; Alaa .A.Al-jubory | ||
| Anbar University - College of Education for Pure Sciences | ||
| Abstract | ||
| Abstract:Thin films of CdxPb1-x S were prepared by chemical spray pyrolysis with ( x=0.6 , 0.7 , 0.8 , 0.9 , 1 ) .The optical properties of prepared thin films were studied by UV-VIS spectrophotomer . From the measurement of absorption and transmission , the optical parameters and the optical energy gap (Eg) were calculated .The optical energy gap (Eg) was increased with increasing the value of Cd from 1.2 eV when x=0.6 to 2.4 eV when x=1 . The maximum value of refractive index (n) is equal to 2.5 and the maximum value of extinction coefficient is varied between 0.2 to 0.45 depending on the value of x . The film with x=0.7 was doped by Ag in the ratio 1% ,3% and 5% . The film after dopping have a direct energy gap also and the value of Eg were increased with increasing (Ag) ratio , these values increased from 1.2 eV for absent Ag to 1.74 eV for 5% Ag . | ||
| Keywords | ||
| Cd substitution; PbS thin film; Optical properties | ||
| References | ||
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