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Study on The Effect of Annealing On The Optical Properties of The Pure Lead Sulfide (PbS) Films and Doping by Copper | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 14, Issue 4, 2014, Pages 42-49 PDF (0 K) | ||
| Author | ||
| am Sami | ||
| Abstract | ||
| lfide (PbS) thin films were prepared by spraying pytolysis Method (SPM). Glass substrates with (1 x 2.6 x 7.6) cm were used at room temperature . Thin film of (PbS) was a doped by (Copper ,Cu) then the effect of annealing at different temperatures(100,200)C0 on the optical properties of (pbS) and (PbS:Cu) are investigation. The optical properties of the (pbs)and (pbs:cu) such as absorbance and transmittance have been analyzed by using (FTIR - 8400S) instrument. The optical band gab energy has been obtained from the plot between the (αhυ) as a function of photon energy (hυ) was (0.43) eV for (pbs) and (0.41 ) eV for (pbs:cu) at the room temperature . The absorption spectra of the films showed that (pbs) and (pbs:cu) have a direct band gap increase slowly with temperature annealing | ||
| Keywords | ||
| Optical Properties of Thin Films | ||
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